CN116183162B - Floating comb type breakwater and oscillating floater wave energy integrated experimental device and method - Google Patents
Floating comb type breakwater and oscillating floater wave energy integrated experimental device and method Download PDFInfo
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Abstract
The application discloses a floating comb-type breakwater and oscillating floater wave energy integrated experimental device and a method, which belong to the technical field of ocean engineering, and can monitor hydrodynamic force and wind farm conditions in real time so as to discover abnormal experimental conditions in time and make adjustment; the vertical motion simulation of the oscillating floater can be realized, and the oscillating floater model can do vertical motion under the combined action of waves and a damper and is not influenced by the floating comb-type breakwater model; the six-degree-of-freedom motion capture camera is adopted, so that the motion of the oscillation floater model and the floating comb-type breakwater model can be measured, the precision is higher, and the motion of the oscillation floater model is not influenced; the breakwater and the oscillating buoy model have the advantages that the wave height is measured in a non-contact manner before and after the breakwater and the oscillating buoy model, the influence on a flow field is avoided, and the error of a model test is reduced; the synchronous measurement and recording of each physical parameter can be realized, and the method is favorable for the disclosure and analysis of the motion mechanism of the oscillating buoy model under each wave flow condition and wind condition.
Description
Technical Field
The application belongs to the technical field of ocean engineering, and particularly relates to a floating comb-type breakwater and oscillating floater wave energy integrated experimental device and method.
Background
With the increase of the water depth of the working environment, the floating breakwater is developed gradually and is applied more, the floating comb breakwater is a novel structural type, a cavity structure is formed by using square boxes and back plates which are alternately arranged, the effective shielding function can be realized by using less volume consumption, and meanwhile, the wave eliminating performance is improved by using the phase difference of the wave facing surface of the breakwater. An oscillating buoy is a wave energy device with simple structural principle, easy construction, low cost and high energy conversion efficiency, and generally consists of a movable buoy and a fixing system. Because wave energy has smaller wave energy density in shallow water areas, the development of the wave energy device to deep water areas is a necessary trend, and if the floating breakwater and the oscillating floats are simultaneously combined, the wave energy can be utilized while wave protection is realized, and the wave energy device has profound economic, environmental and social significance.
In the past, a square box type breakwater is mostly used in the research of combining an oscillating buoy and an offshore floating breakwater, and if the square box type breakwater is used as a fixing system of an oscillating buoy wave energy device while a floating comb type breakwater is built, the oscillating buoy wave energy device and the floating breakwater are effectively combined together, and a group of anchoring systems are shared, so that the sea space can be effectively utilized, the construction cost can be saved, and the method has important engineering significance. Because the real working condition of the oscillating floater is complex, the wave, flow and wind coupling effect is difficult to accurately simulate in numerical simulation, and the obtained result has randomness and larger error. Therefore, the physical model experiment is used for simulating the motion process of the floating comb-type breakwater integrated oscillation floater under the coupling action of wave, flow and wind, and the method is an effective and reliable research means.
Disclosure of Invention
The application aims to provide a floating comb-type breakwater and oscillating buoy wave energy integrated experimental device and method, which are used for solving the problems in the prior art.
In order to achieve the above object, the present application provides a floating comb-type breakwater and oscillating buoy wave energy integrated experimental apparatus, comprising:
the simulation water tank is filled with water, and two ends of the bottom of the simulation water tank are respectively communicated with a water inlet and a water outlet;
the wave flow wind field simulation system is arranged on the simulation water tank and is used for simulating natural hydrodynamic conditions and wind conditions;
the breakwater and the oscillating floater model are arranged in the simulated water tank, and the bottoms of the breakwater and the oscillating floater model are in limit fit with the simulated water tank;
the data acquisition system is used for acquiring experimental data in the experimental process;
and the data acquisition system and the wave-current wind field simulation system are electrically connected with the synchronous control system, and the synchronous control system is used for recording the acquired experimental data.
Preferably, the wave flow wind field simulation system comprises a wave machine, a flow making pump, a fan and a fan housing; the wave machine, the fan and the fan housing are all arranged at the top of the simulated water tank, the wave machine is arranged at the water outlet end of the simulated water tank, the fan housing is arranged at the water inlet end of the simulated water tank, the fan is communicated with the fan housing, and the flow making pump is arranged in the simulated water tank; the wave machine, the flow making pump and the fan are all electrically connected with the synchronous control system.
Preferably, the breakwater and oscillating buoy model comprises a floating comb breakwater model, an oscillating buoy model, a horizontal sliding platform, a vertical sliding rail and a damper; the horizontal sliding platform is arranged at the top of the simulated water tank in a limiting sliding manner, the top end of the vertical sliding rail is fixedly connected with the bottom end of the horizontal sliding platform, the oscillating floater model and the damper are both sleeved on the vertical sliding rail in a sliding manner, and the damper is arranged above the oscillating floater model; the novel comb-type breakwater is characterized in that a connecting piece is fixedly arranged on the inner wall of the bottom end of the simulated water tank, the floating comb-type breakwater model is in limit fit with the simulated water tank through the connecting piece, a cavity is formed in the floating comb-type breakwater model, and the oscillating floater model is arranged in the cavity.
Preferably, the connecting piece is a fixed frame, and the floating comb-type breakwater model is fixedly arranged at the top of the fixed frame.
Preferably, the connecting piece is an anchor chain, and the floating comb-type breakwater model is fixedly arranged at the top of the anchor chain.
Preferably, the data acquisition system comprises an ultrasonic wave height meter, a tension sensor, an acoustic Doppler velocimeter, a fixed anemometer and a six-degree-of-freedom motion capture camera; the ultrasonic wave height meters are arranged on the two sides of the oscillating floater model respectively and are used for measuring wave heights of the oscillating floater model; the tension sensor is arranged between the floating comb-type breakwater model and the connecting piece, and two ends of the tension sensor are fixedly connected with the floating comb-type breakwater model and the connecting piece respectively; the acoustic Doppler velocimeter is arranged in the simulated water tank at one side of the floating comb-type breakwater model, which is close to the water outlet, and the fixed anemometer is fixedly arranged in the fan housing; the six-degree-of-freedom motion capture camera is arranged corresponding to the oscillation floater model and fixedly arranged at the bottom of the horizontal sliding platform; the ultrasonic wave height meter, the tension sensor, the acoustic Doppler velocimeter, the fixed anemometer and the six-degree-of-freedom motion capture camera are electrically connected with the synchronous control system.
Preferably, the synchronous control system comprises a control host and a synchronizer, wherein the ultrasonic wave height meter, the tension sensor, the acoustic Doppler velocimeter, the fixed anemometer and the six-degree-of-freedom motion capture camera are electrically connected with the synchronizer, and the synchronizer, the wave generator, the flow generator pump and the fan are electrically connected with the control host.
Preferably, the floating comb-type breakwater model comprises a bottom plate, one end of the bottom plate is fixedly connected with a back plate, a buoyancy tank is detachably arranged on the back plate, and a cavity is formed between two adjacent buoyancy tanks; the oscillating floater model is of a cylindrical structure, a through hole is formed in the middle of the oscillating floater model along the vertical direction, and the through hole is matched with the vertical sliding rail; the buoyancy tank and the oscillating floater model are both provided with balancing weights.
Preferably, energy dissipation nets are arranged at two ends of the inside of the simulation water tank, a flow generating tank is arranged at the bottoms of two ends of the simulation water tank, a drain grid is arranged on a bottom plate of the simulation water tank, the simulation water tank is communicated with the flow generating tank through the drain grid, a water outlet and a water inlet are respectively communicated with the two flow generating tanks, a plurality of energy dissipation columns are arranged in the flow generating tank, and a flow generating pump is arranged in the flow generating tank.
A floating comb type breakwater and oscillating floater wave energy integrated experimental method uses a floating comb type breakwater and oscillating floater wave energy integrated experimental device, which comprises the following steps:
s1, arranging a breakwater and an oscillating buoy model;
s2, simulating natural hydrodynamic conditions and wind conditions;
s3, collecting and monitoring experimental data;
s4, processing later experimental data.
Compared with the prior art, the application has the following advantages and technical effects:
1. the application can monitor hydrodynamic force and wind field conditions in real time so as to discover abnormal experimental conditions in time and make adjustment;
2. the application can realize the vertical motion simulation of the oscillating floater, and the oscillating floater model can do vertical motion under the combined action of waves and the damper and is not influenced by the floating comb-type breakwater model;
3. the six-degree-of-freedom motion capture camera is adopted, so that the motion of the oscillation floater model and the floating comb-type breakwater model can be measured, the precision is higher, and the motion of the oscillation floater model is not influenced;
4. the breakwater and the oscillating buoy model of the application have the advantages that the wave height is measured in a non-contact manner before and after the breakwater and the oscillating buoy model, the influence on a flow field is avoided, and the error of the model test is reduced;
5. the application can realize synchronous measurement and recording of each physical parameter, and is beneficial to the disclosure and analysis of the motion mechanism of the oscillating buoy model under each wave flow condition and wind condition.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a floating comb-type breakwater and oscillating buoy wave energy integrated experimental device of the application;
FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic diagram of another embodiment of the integrated experimental device for wave energy of the floating comb-type breakwater and the oscillating buoy of the application;
FIG. 4 is a top view of the floating comb-type breakwater model of the present application;
FIG. 5 is a top view of another structure of the floating comb-type breakwater model of the present application;
FIG. 6 is a top view of another structure of the floating comb-type breakwater model of the present application;
the simulation water tank-1, a water inlet-2, a water outlet-3, a wave making machine-4, a flow making pump-5, a fan-6, a fan cover-7, a floating comb-type breakwater model-8, an oscillation float model-9, a horizontal sliding platform-10, a vertical sliding rail-11, a damper-12, a fixed frame-13, an anchor chain-14, an ultrasonic wave height meter-15, a tension sensor-16, an acoustic Doppler current meter-17, a fixed anemometer-18, a six-degree-of-freedom motion capturing camera-19, an energy dissipation net-20, a flow making pool-21, a drainage grid-22, an energy dissipation column-23, a bottom plate-81, a back plate-82, a buoyancy tank-83 and a cavity-84.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present application. The application will be described in detail below with reference to the drawings in connection with embodiments.
The application provides a floating comb-type breakwater and oscillating floater wave energy integrated experimental device, which comprises:
the water-saving device comprises a simulation water tank 1, wherein water is filled in the simulation water tank 1, and a water inlet 2 and a water outlet 3 are respectively communicated with two ends of the bottom of the simulation water tank 1;
the wave flow wind field simulation system is arranged on the simulation water tank 1 and is used for simulating natural hydrodynamic conditions and wind conditions;
a breakwater and oscillating floater model 9, wherein the breakwater and oscillating floater model 9 is arranged in the simulated water tank 1, and the bottom of the breakwater and oscillating floater model 9 is in limit fit with the simulated water tank 1;
the data acquisition system is used for acquiring experimental data in the experimental process;
and the data acquisition system and the wave-current wind field simulation system are electrically connected with the synchronous control system, and the synchronous control system is used for recording the acquired experimental data.
Further, the wave flow wind field simulation system comprises a wave machine 4, a flow making pump 5, a fan 6 and a fan housing 7; the wave machine 4, the fan 6 and the fan cover 7 are all arranged at the top of the simulated water tank 1, the wave machine 4 is arranged at the water outlet end of the simulated water tank 1, the fan cover 7 is arranged at the water inlet end of the simulated water tank 1, the fan 6 is communicated with the fan cover 7, and the flow making pump 5 is arranged in the simulated water tank 1; the wave machine 4, the flow making pump 5 and the fan 6 are all electrically connected with the synchronous control system.
Further, the breakwater and oscillating buoy model 9 comprises a floating comb breakwater model 8, an oscillating buoy model 9, a horizontal sliding platform 10, a vertical sliding rail 11 and a damper 12; the horizontal sliding platform 10 is mounted at the top of the simulated water tank 1 in a limiting sliding manner, the top end of the vertical sliding rail 11 is fixedly connected with the bottom end of the horizontal sliding platform 10, the oscillating floater model 9 and the damper 12 are both sleeved on the vertical sliding rail 11 in a sliding manner, and the damper 12 is arranged above the oscillating floater model 9; the device is characterized in that a connecting piece is fixedly arranged on the inner wall of the bottom end of the simulated water tank 1, the floating comb-type breakwater model 8 is in limit fit with the simulated water tank 1 through the connecting piece, a cavity 84 is formed in the floating comb-type breakwater model 8, and the oscillating floater model 9 is arranged in the cavity 84.
Further, the connecting piece is a fixed frame 13, and the floating comb-type breakwater model 8 is fixedly arranged on the top of the fixed frame 13.
Further, the connecting piece is an anchor chain 14, and the floating comb-type breakwater model 8 is fixedly arranged on the top of the anchor chain 14.
Further, the data acquisition system comprises an ultrasonic wave height meter 15, a tension sensor 16, an acoustic Doppler velocimeter 17, a fixed anemometer 18 and a six-degree-of-freedom motion capture camera 19; the ultrasonic wave height meters 15 are provided with a plurality of ultrasonic wave height meters and are respectively arranged at two sides of the oscillating buoy model 9, and the ultrasonic wave height meters 15 are used for measuring wave heights of the oscillating buoy model 9; the tension sensor 16 is arranged between the floating comb-type breakwater model 8 and the connecting piece, and two ends of the tension sensor 16 are fixedly connected with the floating comb-type breakwater model 8 and the connecting piece respectively; the acoustic Doppler velocimeter 17 is arranged in the simulated water tank 1 at one side of the floating comb-type breakwater model 8 close to the water outlet 3, and the fixed anemometer 18 is fixedly arranged in the fan housing 7; the six-degree-of-freedom motion capture camera 19 is arranged corresponding to the oscillation floater model 9, and the six-degree-of-freedom motion capture camera 19 is fixedly arranged at the bottom of the horizontal sliding platform 10; the ultrasonic wave height meter 15, the tension sensor 16, the acoustic Doppler velocimeter 17, the fixed anemometer 18 and the six-degree-of-freedom motion capture camera 19 are all electrically connected with the synchronous control system.
Further, the synchronous control system comprises a control host and a synchronizer, wherein the ultrasonic wave height meter 15, the tension sensor 16, the acoustic Doppler velocimeter 17, the fixed anemometer 18 and the six-degree-of-freedom motion capture camera 19 are electrically connected with the synchronizer, and the synchronizer, the wave generator, the flow pump 5 and the fan 6 are electrically connected with the control host.
Further, the floating comb breakwater model 8 includes a bottom plate 81, one end of the bottom plate 81 is fixedly connected with a back plate 82, a buoyancy tank 83 is detachably mounted on the back plate 82, and a cavity 84 is formed between two adjacent buoyancy tanks 83; the oscillating buoy model 9 is of a cylindrical structure, a through hole is formed in the middle of the oscillating buoy model 9 along the vertical direction, and the through hole is matched with the vertical sliding rail 11; the buoyancy tank 83 and the oscillating buoy model 9 are both provided with balancing weights.
Further, the energy dissipation nets 20 are arranged at two ends of the inside of the simulation water tank 1, the flow generating tanks 21 are arranged at the bottoms of two ends of the simulation water tank 1, the bottom plate 81 of the simulation water tank 1 is provided with the drain grating 22, the simulation water tank 1 is communicated with the flow generating tanks 21 through the drain grating 22, the water outlet 3 and the water inlet 2 are respectively communicated with the two flow generating tanks 21, a plurality of energy dissipation columns 23 are arranged in the flow generating tanks 21, and the flow generating pump 5 is arranged in the flow generating tanks 21.
A floating comb type breakwater and oscillating floater wave energy integrated experimental method uses a floating comb type breakwater and oscillating floater wave energy integrated experimental device, which comprises the following steps:
s1, arrangement of breakwater and oscillating buoy model 9
Before the breakwater and the oscillating buoy model 9 are arranged, the breakwater and the oscillating buoy model 9 are manufactured by the following specific manufacturing method:
the floating comb breakwater model 8 consists of three floating boxes 83, a bottom plate 81 and a back plate 82, wherein the frame of the floating boxes 83 is made of stainless steel, PVC plates with higher strength are fixed on the frame outside, special dissolved adhesives are adopted to bond and seal joints of the plates, the positions of bolts and the like are sealed by silica gel, and a counterweight is additionally arranged at the top or inside the floating boxes 83 to adjust the draft in the test; the external dimensions of the floating comb breakwater model 8 will be determined based on geometrical similarity, the length being smaller than the width of the basin, and the arrangement of the anchor chains 14 and the fixing frames 13 should be considered; the volume and planar shape of the two cavities 84 may be changed by changing the size and planar shape of the buoyancy tank 83, for example, the cavities 84 may be changed to a shape of a triangle, a circular arc, or the like, to study the movement characteristics of the float in the cavities 84 of different shapes.
The oscillating float model 9 is a sealed hollow cylinder formed by rolling and welding stainless steel sheets, a counterweight is added outside to ensure that the average density of the model and the prototype is the same, the external dimension of the oscillating float model 9 is determined based on geometric similarity, the bottom surface diameter is slightly smaller than the width of a cavity 84 of the floating comb-type breakwater model 8, a through hole in the middle of the cylinder is matched with a vertical sliding rail 11, and the floats can pass through the vertical sliding rail 11 and normally vertically slide; the bottom surface of the oscillating buoy model 9 can be made into different types of bottom surfaces such as a cone, a truncated cone or a sphere instead of a flat bottom.
The arrangement flow of the breakwater and the oscillating buoy model 9 is as follows:
s1.1, fixing a floating comb-type breakwater model 8 at the bottom of a water tank through a connecting piece, and installing a tension sensor 16 between the floating comb-type breakwater model 8 and the connecting piece;
s1.2, arranging special marks at the top of a floating comb-type breakwater model 8, and arranging special marks at the upper end and the lower end of an oscillation float model 9 for capturing and recording motion indexes by a six-degree-of-freedom motion capturing camera 19;
s1.3, placing a horizontal sliding platform 10 on a guide rail which spans the upper edge of the side wall of the simulated water tank 1, wherein the position is right above the floating comb-type breakwater model 8;
s1.4, fixing a vertical sliding rail 11 at the bottom of a horizontal sliding platform 10, wherein the vertical sliding rail 11 and the central axis of a cavity 84 on a floating comb-type breakwater model 8 are positioned on the same vertical line;
s1.5, fixing a base of a damper 12 at the bottom of a horizontal sliding platform 10, connecting an oscillating float model 9 with the damper 12 through a vertical sliding rail 11, and fixing the oscillating float model 9 to prevent the oscillating float model 9 from sliding off before water injection;
s1.6, four six-degree-of-freedom motion capturing cameras 19 are arranged at four corners of the bottom of the horizontal sliding platform 10 and used for recording the motion process of the oscillating buoy model 9 and the floating comb-type breakwater model 8;
s1.7, respectively arranging three stainless steel frames at the front and rear sides of the floating comb-type breakwater model 8, crossing on guide rails on the upper edges of the two side walls of the simulated water tank 1, and fixing three ultrasonic sensors on each stainless steel frame and respectively corresponding to the center of the floating comb-type breakwater model 8 and the centers of the two cavities 84;
s1.8, fixing an acoustic Doppler velocimeter 17 at a certain distance from a hydrophobic grid 22 in a simulated water tank 1, fixing an anemometer at a certain distance from a fan 6, and connecting the two anemometers with a control host; the ultrasonic wave height instrument 15, the tension sensor 16 and the six-degree-of-freedom motion capture camera 19 are connected with a synchronizer, and the synchronizer is connected with a control host;
s2, simulating natural hydrodynamic conditions and wind conditions, wherein the specific flow is as follows:
s2.1, injecting water into the simulated water tank 1 until the designed water depth, and after the floating comb-type breakwater model 8 floats and stabilizes, adjusting the position of the horizontal sliding platform 10 to enable the oscillating buoy model 9 to be at a designated position in the center of the cavity 84, fixing the horizontal sliding platform 10, and releasing the fixing of the oscillating buoy model 9 on the vertical sliding rail 11;
s2.2, after the water surface is stable, acquiring zero values of an ultrasonic wave height meter 15, a tension sensor 16, an acoustic Doppler velocimeter 17, a fixed anemometer 18 and a six-degree-of-freedom motion capture camera 19 by using a control host;
s2.3, supplying power to a wave current wind field simulation system, manufacturing wave current and wind, and simulating real natural hydrodynamic conditions and wind conditions;
s3, collecting and monitoring experimental data
When the test is started, an ultrasonic wave height meter 15, a tension sensor 16 and a six-degree-of-freedom motion capture camera 19 are started to enter a working state, wave height change data before and after the model, tension data received by a floating comb type breakwater model 8 and motion data of the floating comb type breakwater model 8 and an oscillation floater model 9 are recorded; monitoring wave height, flow speed and wind speed in real time during the test to ensure no abnormal experimental conditions;
s4, post-experiment data processing
And (5) after the test is finished, turning off the power supply, stopping data acquisition, and performing later experimental data processing. The experimental data processing mainly comprises the following steps: the reflection coefficient and the transmission coefficient of the oscillating buoy model 9 under the condition of existence are analyzed through wave height change data, so that the influence of the oscillating buoy model 9 on the overall wave eliminating performance of the floating comb-type breakwater model 8 is clear; analyzing the basic characteristics of the bearing capacity of the anchoring system of the floating comb-type breakwater model 8-the oscillating buoy model 9 through tension data; the wave energy capturing efficiency of the oscillating buoy model 9 is analyzed by the motion data of the oscillating buoy model 9 and the floating comb breakwater model 8 in combination with different damper 12 parameters.
The floating comb-type breakwater and oscillating floater wave energy integrated experimental device and method provided by the application have the following advantages:
1. hydrodynamic and wind field condition real-time monitoring
In the past experimental study, experiments are started only by setting experimental parameters, experimental conditions are not monitored, but the ultrasonic wave height meter 15, the acoustic Doppler flow meter 17 and the fixed anemometer 18 are connected with the same control host, wave height, flow speed and wind speed data in the experimental process are displayed in real time in the control host, and hydrodynamic force and wind field conditions can be monitored in real time so as to discover abnormal experimental conditions in time and adjust.
2. Oscillating float vertical motion simulation
Since the vertical displacement change of the oscillating buoy model 9 is mainly focused in this study, it is necessary to let the oscillating buoy model 9 move vertically under the action of waves; in the prior test, the sliding rail and the axis of the oscillating buoy model 9 are not in the same straight line, so that the oscillating buoy model 9 is affected by bending moment to block movement; in addition, the damper 12 fixed to the breakwater also provides a large damping error due to the movement of the breakwater. The application designs a group of vertical sliding rails 11 separated from the floating comb-type breakwater model 8, the oscillating float model 9 is designed into a cylinder shape, the center of the oscillating float model 9 is hollowed along the axis and is matched with the vertical sliding rails 11 in shape, the upper part of the vertical sliding rails 11 is fixed on a horizontal sliding platform 10 right above a cavity 84 of the floating comb-type breakwater model 8, the lower end of the vertical sliding rails passes through the center of the oscillating float model 9, and a damper 12 is arranged above the oscillating float model 9, so that the oscillating float model 9 can vertically move under the combined action of waves and the damper 12 and is not influenced by the floating comb-type breakwater model 8.
3. Vertical relative displacement motion capture of oscillating floats
The six-degree-of-freedom motion capture camera 19 is adopted to measure the motions of the oscillating buoy model 9 and the floating comb-type breakwater model 8, and the six-degree-of-freedom motion capture camera 19 can track the motions of a plurality of objects simultaneously because the motion is measured based on a visual principle; firstly, labeling special marks at each position of an oscillating buoy model 9 and a floating comb-type breakwater model 8, wherein the marks have the functions of reflecting light or actively emitting light, infrared light emitted by a six-degree-of-freedom motion capture camera 19 is reflected back to the camera by the marks, thereby recording the motion index of the mark point in a three-dimensional space, calculating the six-degree-of-freedom parameters of the motion of the oscillating buoy model 9 and the floating comb-type breakwater model 8 in the space through special software, and further obtaining the relative motion of the oscillating buoy model 9 and the floating comb-type breakwater model 8; the motion capture camera applied in the application is 2600 ten thousand pixels, the visual angle of the lens reaches 77 degrees, and the camera has the functions of active filtering and the like so as to avoid the influence of factors such as reflection caused by water waves on measurement; compared with the traditional inertial sensor for acquiring experimental data, the method has higher precision and does not influence the movement of the oscillating buoy model 9.
4. Model front-back wave height contactless measurement
The ultrasonic wave height instrument 15 is used for measuring wave heights of the oscillating floater model 9 and the floating comb-type breakwater model 8, has the advantages of high precision, high response speed, high anti-interference capability and the like, and compared with the traditional capacitive wave height instrument, the ultrasonic wave height instrument 15 has no influence on a flow field due to no contact with a water body, and is beneficial to reducing errors of model tests.
5. Synchronous analysis of physical parameters in the course of motion
The content measured in the test comprises the wave height of the floating comb type breakwater model 8, the tensile force applied to the floating comb type breakwater model 8, the movement condition of the oscillating floater model 9 and the like; if the measuring instruments are operated and controlled one by one, various factors of the movement process cannot be related so as to analyze the movement characteristics of the oscillating buoy model 9 under the wave flow condition and the wind field condition; the application adopts the synchronizer to control wave height measurement, water flow speed measurement, wind speed measurement, six-degree-of-freedom motion displacement measurement, tension measurement and other instruments, realizes synchronous measurement and recording of each physical parameter, and is beneficial to the disclosure and analysis of the motion mechanism of the oscillating buoy model 9 under each wave flow condition and wind condition.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a floating comb formula breakwater and integrated experimental apparatus of oscillating buoy wave energy which characterized in that includes:
the water treatment device comprises a simulation water tank (1), wherein water is filled in the simulation water tank (1), and two ends of the bottom of the simulation water tank (1) are respectively communicated with a water inlet (2) and a water outlet (3);
the wave flow wind field simulation system is arranged on the simulation water tank (1) and is used for simulating natural hydrodynamic conditions and wind conditions;
the breakwater and oscillating floater model (9) is arranged in the simulated water tank (1), and the bottom of the breakwater and oscillating floater model (9) is in limit fit with the simulated water tank (1);
the data acquisition system is used for acquiring experimental data in the experimental process;
and the data acquisition system and the wave-current wind field simulation system are electrically connected with the synchronous control system, and the synchronous control system is used for recording the acquired experimental data.
2. The integrated experimental device for wave energy of the floating comb-type breakwater and the oscillating buoy according to claim 1, wherein the wave-current wind field simulation system comprises a wave machine (4), a current-making pump (5), a fan (6) and a fan housing (7); the wave machine (4), the fan (6) and the fan housing (7) are all arranged at the top of the simulated water tank (1), the wave machine (4) is arranged at the water outlet end of the simulated water tank (1), the fan housing (7) is arranged at the water inlet end of the simulated water tank (1), the fan (6) is communicated with the fan housing (7), and the flow making pump (5) is arranged in the simulated water tank (1); the wave machine (4), the flow making pump (5) and the fan (6) are electrically connected with the synchronous control system.
3. The integrated experimental device for the wave energy of the floating comb-type breakwater and the oscillating buoy according to claim 2, wherein the breakwater and the oscillating buoy model (9) comprise a floating comb-type breakwater model (8), an oscillating buoy model (9), a horizontal sliding platform (10), a vertical sliding rail (11) and a damper (12); the horizontal sliding platform (10) is arranged at the top of the simulation water tank (1) in a limiting sliding manner, the top end of the vertical sliding rail (11) is fixedly connected with the bottom end of the horizontal sliding platform (10), the vibration float model (9) and the damper (12) are both sleeved on the vertical sliding rail (11) in a sliding manner, and the damper (12) is arranged above the vibration float model (9); the novel comb type breakwater is characterized in that a connecting piece is fixedly arranged on the inner wall of the bottom end of the simulation water tank (1), the floating comb type breakwater model (8) is in limit fit with the simulation water tank (1) through the connecting piece, a cavity (84) is formed in the floating comb type breakwater model (8), and the oscillating floater model (9) is arranged in the cavity (84).
4. A floating comb breakwater and oscillating buoy wave energy integrated experimental device according to claim 3, characterized in that the connecting piece is a fixed frame (13), and the floating comb breakwater model (8) is fixedly mounted on the top of the fixed frame (13).
5. A floating comb breakwater and oscillating buoy wave energy integrated experimental device according to claim 3, characterized in that the connecting piece is an anchor chain (14), and the floating comb breakwater model (8) is fixedly mounted on top of the anchor chain (14).
6. The integrated experimental device for wave energy of the floating comb-type breakwater and the oscillating buoy according to claim 3, wherein the data acquisition system comprises an ultrasonic wave height meter (15), a tension sensor (16), an acoustic Doppler velocimeter (17), a fixed anemometer (18) and a six-degree-of-freedom motion capture camera (19); the ultrasonic wave height meters (15) are arranged in a plurality and are respectively arranged at two sides of the oscillating buoy model (9), and the ultrasonic wave height meters (15) are used for measuring wave heights of the oscillating buoy model (9) before and after; the tension sensor (16) is arranged between the floating comb-type breakwater model (8) and the connecting piece, and two ends of the tension sensor (16) are fixedly connected with the floating comb-type breakwater model (8) and the connecting piece respectively; the acoustic Doppler velocimeter (17) is arranged in the simulated water tank (1) at one side of the floating comb-type breakwater model (8) close to the water outlet (3), and the fixed anemometer (18) is fixedly arranged in the fan housing (7); the six-degree-of-freedom motion capture camera (19) is arranged corresponding to the oscillation floater model (9), and the six-degree-of-freedom motion capture camera (19) is fixedly arranged at the bottom of the horizontal sliding platform (10); the ultrasonic wave height meter (15), the tension sensor (16), the acoustic Doppler velocimeter (17), the fixed anemometer (18) and the six-degree-of-freedom motion capture camera (19) are electrically connected with the synchronous control system.
7. The integrated experimental device for wave energy of the floating comb breakwater and the oscillating buoy according to claim 6, wherein the synchronous control system comprises a control host and a synchronizer, wherein the ultrasonic wave height meter (15), the tension sensor (16), the acoustic Doppler flow meter (17), the fixed anemometer (18) and the six-degree-of-freedom motion capture camera (19) are electrically connected with the synchronizer, and the synchronizer, the wave generator, the current generation pump (5) and the fan (6) are electrically connected with the control host.
8. A floating comb breakwater and oscillating buoy wave energy integrated experimental device according to claim 3, characterized in that the floating comb breakwater model (8) comprises a bottom plate (81), one end of the bottom plate (81) is fixedly connected with a back plate (82), a buoyancy tank (83) is detachably arranged on the back plate (82), and a cavity (84) is formed between two adjacent buoyancy tanks (83); the oscillating floater model (9) is of a cylindrical structure, a through hole is formed in the middle of the oscillating floater model (9) along the vertical direction, and the through hole is matched with the vertical sliding rail (11); the buoyancy tank (83) and the oscillating floater model (9) are respectively provided with a balancing weight.
9. The floating comb breakwater and oscillating buoy wave energy integrated experimental device according to claim 2, wherein energy dissipation nets (20) are arranged at two ends of the inside of the simulation water tank (1), a flow generating tank (21) is arranged at two bottoms of the simulation water tank (1), a hydrophobic grid (22) is arranged on a bottom plate (81) of the simulation water tank (1), the simulation water tank (1) is communicated with the flow generating tank (21) through the hydrophobic grid (22), the water outlet (3) and the water inlet (2) are respectively communicated with the two flow generating tanks (21), a plurality of energy dissipation columns (23) are arranged in the flow generating tanks (21), and the flow generating pump (5) is arranged in the flow generating tanks (21).
10. A method for integrating wave energy of a floating comb-type breakwater and an oscillating buoy, which is characterized by using the device for integrating wave energy of a floating comb-type breakwater and an oscillating buoy according to any one of claims 1-9, and comprising the following steps:
s1, arranging a breakwater and an oscillating buoy model (9);
s2, simulating natural hydrodynamic conditions and wind conditions;
s3, collecting and monitoring experimental data;
s4, processing later experimental data.
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