CN101710464A - Comprehensive stimulation system for realizing coupling effects of wave, current and wind in water tank - Google Patents
Comprehensive stimulation system for realizing coupling effects of wave, current and wind in water tank Download PDFInfo
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- CN101710464A CN101710464A CN200910244853A CN200910244853A CN101710464A CN 101710464 A CN101710464 A CN 101710464A CN 200910244853 A CN200910244853 A CN 200910244853A CN 200910244853 A CN200910244853 A CN 200910244853A CN 101710464 A CN101710464 A CN 101710464A
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Abstract
The invention discloses a comprehensive stimulation system for realizing the coupling effects of wave, current and wind in a water tank, which comprises the water tank, a wave making machine for generating wave in the water tank, a wind making system and a current generation system. The current generation system comprises current generation pools arranged under both ends of the water tank, a hydrophobic gate which is arranged on the bottom surface of the water tank and is communicated with the water tank and the current generation pools, a current generation pipeline which is arranged outside the water tank and is connected with the current generation pools at both ends, and a water pump arranged on the current generation pipeline, wherein the current generation pipeline is provided with a water inlet and a water outlet. The wind making system comprises a fan cover which has a certain distance from the wave making machine and is arranged above the water tank; the fan cover extends to one end of the water tank which is far away from one side of the wave making machine; an airduct is arranged above the water tank at the tail end of the fan cover; the inside of the airduct is provided with a fan; and the fan cover, the airduct and the water tank are hermetically connected to form a wind tunnel. The comprehensive stimulation system can integrally and truly simulate hydrodynamic environments of harbors, seacoasts and offshore by comprehensively generating the wave, the tidal current and the wind in real time in the water tank.
Description
Technical field
The present invention relates to Harbor, Coastal and Offshore Engineering experimental study field, particularly relate to a kind of comprehensive stimulation system of in tank, realizing ripple, stream, wind coupling.
Background technology
Along with development and national economy and the raising of building the port technical merit, port construction develops towards deep waterization, maximization direction, and the open type harbour is more and more.Build the port in the profundal zone and must flow anxious natural conditions in the face of the wave is high, harbour, seashore and coastal waters hydrodynamic environment mainly are made up of wave (hereinafter to be referred as " ripple "), trend (hereinafter to be referred as " stream ") and three kinetic factors of wind, these three factors are main external loads that buildings bore of port engineering, and the coupling of taking all factors into consideration three major impetus of seashore can reflect and solve engineering problem effectively truly.
The common problem that at first will consider in the port construction mainly contains: (1) wave condition comprises that wave screens the stability of condition and wave resistance buildings; (2) ship's navigation reaches from the alongside condition; (3) the silt alluvial in excavation waters.Study these common problems, often need to take all factors into consideration multiple kinetic factor, for example: research wave shielding condition, need consider the influence of wind, wave simultaneously; The research ship's navigation need be considered the influence of wind, ripple, stream simultaneously; Research silt alluvial problem need be considered ripple, stream and sediment Characteristics simultaneously.How to resolve these common problems, build the condition precedent of port success or failure often, and the experimental study of these problems is preconditions of engineering design.
The physical simulation techniques of port engineering is occupied critical positions in Harbor, Coastal and Offshore Engineering, at present towards by simple to complexity,, develop to comprehensive direction to careful by coarse by single.Therefore taking all factors into consideration the influence of ripple, stream, wind three big factors, further near physical environment, is the strong instrument and basis that carries out port engineering research.
But, in the physical simulation experiment system of Harbor, Coastal and Offshore Engineering, have only the coupling of ripple, stream at present, perhaps have only the coupling of ripple, wind.Both of these case still can meet the demands for analyzing the influence of fairly simple or single drive marine to Structures in Port Engineering, but for needs more realistically near the experimental study of physical environment, then can produce bigger error, even the research that can't experimentize.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of comprehensive physical simulation system of realizing ocean physical environment three big dynamic waves, stream, wind in tank, for the coupling of further studying wave current wind provides experiment basis.
For this reason, technical scheme of the present invention is as follows:
A kind of comprehensive stimulation system of realizing ripple, stream, wind coupling in tank comprises tank and is arranged on the wave making machine of tank one side, also comprises wind making system and current generating system, and described current generating system comprises the following stream pond of making that is arranged on the tank two ends; Be arranged on and be communicated with tank on the tank bottom surface and make the hydrophobic grid in stream pond; Be arranged on tank outside, connect two ends make the stream pond make the stream pipeline; Be installed in the water pump of making on the stream pipeline, the described stream pipeline of making is provided with water inlet and water delivering orifice, described wind making system comprises and the wave making machine fan housing that is installed in the tank top separated by a distance, described fan housing extends to tank one end away from wave making machine one side, above the tank of the end of fan housing, the air channel is installed, blower fan is installed in the air channel, and described fan housing, air channel and tank are tightly connected, and form wind-tunnel.
Described water pump is that described blower fan is a frequency conversion fan by the bidirectional reversible water pump of variable-frequency motor control.
Be provided with a plurality of energy dissipating posts that are used for mild flow energy described making in the stream pond, described energy dissipating post is a concrete column.In addition, the wall at described tank two ends is provided with the wave suppression arrangement that is used to eliminate reflection wave, and described wave suppression arrangement is that the spiral fashion with crack and absorption energy function is oozed adrainage material.
Owing to need wave making machine, blower fan are installed and make the stream pipeline in the head and the tail section of tank, the sidewall of head and the tail section be a reinforced concrete structure; The interlude of tank sidewall also in order to reduce the friction of water body and sidewall, adopts the tempered glass structure for the ease of the viewing test process; In order to reduce the friction of water body and sidewall, the tank bottom surface adopts marble to lay.
Comprehensive stimulation system of the present invention can complete hydrodynamic environment of simulating harbour, seashore and coastal waters truly by comprehensive, the real-time generation in tank of wave, trend, wind.
Below in conjunction with accompanying drawing the structure of the comprehensive stimulation system of ripple, stream, wind coupling that realizes in tank of the present invention is elaborated.
Description of drawings
Fig. 1 is that the master of ripple of the present invention, stream, wind comprehensive stimulation system looks synoptic diagram;
Fig. 2 is ripple, the stream among Fig. 1, the schematic top plan view of wind comprehensive stimulation system;
Embodiment
Referring to Fig. 1 and Fig. 2, the comprehensive stimulation system of ripple, stream, wind coupling of realizing in tank of the present invention comprises: tank 10 and the wave making machine 11 that is arranged on tank 10 1 sides, also comprise wind making system and current generating system in addition, wave making machine 11 is used for producing the wave of required waveform in tank.Described current generating system comprises that following two of being arranged on tank 10 two ends make stream pond 12; Be arranged on and be communicated with tank 10 on tank 10 bottom surfaces and make the hydrophobic grid 13 in stream pond 12; Be arranged on tank 10 outsides, the making of stream pond 12 of making that connects two ends flowed pipeline 14; Be installed in and make the water pump 15 of stream on the pipeline 14, the described stream pipeline 14 of making is provided with into/water delivering orifice 16A and 16B, preferably, advance/water delivering orifice 16A and 16B be separately positioned on contiguous two and make stream Chi12Chu, and be connected with the water source.Described wind making system comprises and wave making machine 11 fan housings 17 that are installed in tank 10 tops separated by a distance, fan housing 17 extends to tank one end away from wave making machine 11 1 sides always, air channel 18 is installed above the tank of fan housing 17 ends, blower fan 19 is installed in air channel 18, described fan housing 17, air channel 18 are tightly connected with tank 10, form wind-tunnel.
Tank 10 is a rectangle, and in one embodiment of the invention, the specification of tank is wide 1 meter, and is high 1.5 meters, long 68 meters.The bottom surface of tank 10 is above ground level, have ground below, make the bottom that stream pond 12 is arranged on tank 10 two ends, in making stream pond 12, be provided with a plurality of energy dissipating posts 20 that are used for mild flow energy, energy dissipating post 20 is generally concrete column, and concrete column also plays the booster action that supports the two ends, pond simultaneously.Consider and wave making machine, blower fan to be installed and to make the stream pipeline in the head and the tail section of tank 10 that the sidewall of tank head and the tail section should have certain support strength, so the head and the tail section is made reinforced concrete structure; The interlude of tank 10 sidewalls also in order to reduce the friction of water body and sidewall, adopts the tempered glass structure for the ease of the viewing test process; In order to reduce the friction of water body and bottom surface, the tank bottom surface adopts marble to lay.The air intake vent of tank wind-tunnel is at close wave making machine one end, and air outlet and blower fan are at the other end of tank 10.Except that air intake vent and air outlet, whole tank wind-tunnel seals.For convenience various testing tools are installed in that tank 10 is inner, need leave sufficient space, so the wind-tunnel top makes the semicircle arch, adopt transparent polycarbonate force-bearing plate, and be provided with sealing, support and fastener.Current generating system adopts gauche form to arrange the mode of pipeline, tank end turnover current.Flow rate of water flow when making stream pond 12, energy dissipating post 20 and hydrophobic grid 13 and can guarantee to make stream in the tank is even, smooth-going.In addition, on the wall at tank two ends, be provided with wave suppression arrangement, produce reflection wave to prevent cell wall.Preferably, described wave suppression arrangement oozes adrainage material by the spiral fashion that has the crack and absorb energy function and constitutes.
Described wave making machine is for adopting the wave making machine of synchronous AC driven by servomotor.When making the ripple test, go out to wish the water wave signal of wave spectrum by COMPUTER CALCULATION, and convert thereof into the data that are equivalent to push wave plate movement velocity and position by switch, be input in the corresponding controller, controller is converted into the required pulse/frequency signal of motor servo driver according to certain rules, the rotating speed and the rotational angle of control servomotor by the rectilinear motion unit, make the characteristics of motion of the firm and hard existing expection of push wave; Position and tach signal with scrambler collection servomotor feed back to it in motor servo driver and the controller, constitute closed loop to improve the stability of position control accuracy and movement velocity.
Pump motor in the described current generating system is a variable-frequency motor, by computer control.The water pump bidirectional reversible is installed on the tank outside, is serially connected with in the outer loop pipeline, two of water pump advance/and water delivering orifice makes the stream pond by what pipeline was connected to the tank two ends, and pipeline can adopt one-time formed PVC material, and its inside surface is smooth, on-way resistance is little, and is antirust, and construction is simple.When making the stream test, go out the wave current signal of hope by COMPUTER CALCULATION, convert thereof into the data that are equivalent to the pump motor rotating speed, be input in the corresponding controller, and convert thereof into the needed signal of frequency converter according to certain rules, the rotating speed of control pump motor, thus the wave current speed in the tank controlled.The bidirectional reversible water pump is bidirectional traffics difference to some extent under same rotating speed, this difference by computing machine by adjusting when forward and reverse rotating speed of motor compensate, utilize the forward and reverse different rotating speed of motor to guarantee that water pump has identical flow when forward and reverse.
The blower motor of described wind making system is a variable-frequency motor, by computer control.Fan outlet is connected to outside, experiment hall by the road, and blower fan is fixed in the tank end together with its air inlet, has formed the wind-tunnel that seals jointly with the semicircle arch polycarbonate structure that is fixed in tank top (being 55 meters long in the present embodiment).When making the wind test, go out the wind velocity signal of hope by COMPUTER CALCULATION, and convert thereof into the data that are equivalent to rotation speed of fan, be input in the corresponding controller, controller is controlled rotation speed of fan by converting thereof into the needed signal of frequency converter, thereby has controlled the distinguished and admirable speed in the tank wind-tunnel.At test section, carry out various operations during for the ease of test, for example carry model, must reserve enough operating spaces, the fan housing (being about 4 meters long in the present embodiment) of test section be made packaged type for this reason, when making test model 21, two sections fan housings are removed, modelling finishes, and when making the wind experiment, two sections fan housings is resetted again.
Whole system of the present invention is by computer control, and according to the difference of controlling object, computing machine sends three tunnel control signals, enters respectively and makes the ripple control system, makes flow control system and make the wind control system.Making the ripple control system is a cover servo-control system, finally is used to control the accurate motion of wave making machine push wave plate, produces the needed desirable wave of test; Making flow control system is a cover frequency-changing control system, by the rotating speed of control pump motor group, produces the needed desirable wave current flow velocity of test in tank; Making the wind control system also is a cover frequency-changing control system, by the rotating speed of control blower fan, produces the needed desirable wind speed of test in airtight tank wind-tunnel.
Claims (7)
1. comprehensive stimulation system of in tank, realizing ripple, stream, wind coupling, comprise tank and the wave making machine that is arranged on tank one side, it is characterized in that: also comprise wind making system and current generating system, described current generating system comprises the following stream pond of making that is arranged on the vertical two ends of tank; Be arranged on and be communicated with tank on the tank bottom surface and make the hydrophobic grid in stream pond; Be arranged on tank outside, connect two ends make the stream pond make the stream pipeline; Be installed in the water pump of making on the stream pipeline, the described stream pipeline of making is provided with water inlet and water delivering orifice, described wind making system comprises and the wave making machine fan housing that is installed in the tank top separated by a distance, described fan housing extends to tank one end away from wave making machine one side, above the tank of the end of fan housing, the air channel is installed, blower fan is installed in the air channel, and described fan housing, air channel and tank are tightly connected, and form wind-tunnel.
2. comprehensive stimulation system according to claim 1 is characterized in that: described water pump is the bidirectional reversible water pump by variable-frequency motor control, and described blower fan is a frequency conversion fan.
3. comprehensive stimulation system according to claim 2 is characterized in that: be provided with a plurality of energy dissipating posts that are used for mild flow energy described making in the stream pond.
4. comprehensive stimulation system according to claim 3 is characterized in that: described energy dissipating post is a concrete column.
5. comprehensive stimulation system according to claim 2 is characterized in that: the wall at described tank two ends is provided with the wave suppression arrangement that is used to eliminate reflection wave.
6. comprehensive stimulation system according to claim 5 is characterized in that: described wave suppression arrangement oozes adrainage material by the spiral fashion with crack and absorption energy function and constitutes.
7. according to each described comprehensive stimulation system in the claim 1～6, it is characterized in that: the sidewall of the head and the tail section of described tank is a reinforced concrete structure, and the sidewall of interlude is the tempered glass structure, is equipped with marble in the bottom surface of tank.
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| CN200910244853A CN101710464A (en) | 2009-12-17 | 2009-12-17 | Comprehensive stimulation system for realizing coupling effects of wave, current and wind in water tank |
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| CN200910244853A CN101710464A (en) | 2009-12-17 | 2009-12-17 | Comprehensive stimulation system for realizing coupling effects of wave, current and wind in water tank |
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| CN113639959B (en) * | 2021-10-18 | 2022-02-11 | 中国水产科学研究院渔业工程研究所 | Water tank wave flow generation system with rear-mounted outflow opening |
| CN118130043A (en) * | 2024-04-30 | 2024-06-04 | 中国海洋大学 | Annular totally-enclosed infinite interval wind-wave generation physical pool, system and method |
| CN118130043B (en) * | 2024-04-30 | 2024-07-16 | 中国海洋大学 | Annular totally-enclosed infinite interval wind-wave generation physical pool, system and method |
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