LU501214B1 - Harbor basin simulator and test method thereof - Google Patents

Abstract

The invention provides a harbor basin simulator and test method thereof. The harbor basin simulator comprises a harbor basin, a control center, a wave generator, a current generator, a mobile platform, a sampling device, a sanding-adding device, a shooting device, a water inlet control valve and a drainage control switch. According to the invention, the change of the tide and the flow velocity of the rising and falling tides within a specified time can be realized through the flow-making installation; sampling at any position in the harbor basin can be realized by moving the sampling device on the mobile platform; through the movement of the sanding-adding device on the mobile platform, the sanding-adding operation can be carried out at any position of the harbor basin; by moving the shooting device on the mobile platform, the shooting monitoring at any position of the harbor basin can be realized.

Description

DESCRIPTION Harbor basin simulator and test method thereof

TECHNICAL FIELD The invention belongs to the technical field of port waterway and coastal engineering, and in particular relates to a port basin simulation device and a test method thereof.

BACKGROUND Wave-making and current-making device is a necessary experimental device for physical model research in port channel and coastal engineering, coastal and estuarine wave, tidal current and sediment simulation experiments. The concept of physical model is based on the mechanical law of water flow and sediment movement. According to the similarity theory, making a solid model similar to the prototype geometry, and taking the dynamic and dynamic similarity as the criterion, the process of testing and studying the flow, wave, sediment movement and riverbed evolution law of rivers, lakes, estuaries and coasts (including the corresponding changes before and after the project) is called solid simulation, and the similar model made and tested according to it is called solid model, commonly known as physical model and abbreviated as physical model.

In the current physical model, there are the following shortcomings: 1. The single wave-making and current-making device only has wave power, without tidal power and tidal change; 2. In the process of sediment simulation, uniform sanding-adding operation cannot be realized; 3. It is impossible to monitor the whole process, and it is impossible to monitor the physical parameters of waves and tidal currents (such as wave period, wave direction, wave climb, water flow velocity) and the evolution of beach geomorphological features in pixel time series; 4. It is impossible to realize moving and fixed-point uniform sampling; 5. It is impossible to realize the change of tidal range and velocity of rising tide and falling tide within the specified time. The above problems lead to the difference between the model data and the prototype data under the dynamic and dynamic similarity criteria, and the experimental data is extremely inaccurate.

SUMMARY The invention provides a simulation device for a harbor basin and a test method thereof, aiming at solving the problems in the prior art that the object model has no tidal power and tidal change, can not be photographed and monitored in the whole process, the model data is greatly different from the prototype data, and the experimental data is inaccurate.

The invention is realized by providing a harbor basin simulator, which comprises a harbor basin, a control center, a wave generator for generating waves with different wavelengths and wave heights, a current generator for simulating rising and falling tides, a mobile platform slidably arranged on the harbor basin, a sampling device for sampling the sediment in the harbor basin at a fixed point, a sanding-adding device for sanding- adding to simulate the suspended sediment concentration, a shooting device slidably arranged on the mobile platform and a current generator for controlling the current generator. The wave generator is arranged in the harbor basin, the current generator is arranged at one side of the wave generator, the sampling device is slidably arranged on the mobile platform, and the sanding-adding device is slidably arranged on the mobile platform.

Furthermore, the harbor basin simulator also includes a wave-eliminating area for eliminating the waves, and the wave-eliminating area is arranged at the other side of the wave maker.

Furthermore, two sides of the harbor pool are respectively provided with guide rails, one end of the mobile platform is slidably arranged on one guide rail, and the other end of the mobile platform is slidably arranged on the other guide rail.

Furthermore, the flow generating device is provided with a water inlet pipe and a water outlet pipe, the water inlet control valve is arranged on the water inlet pipe, and the water outlet control switch is arranged on the water outlet pipe.

Furthermore, the harbor basin simulator also comprises a water inlet intelligent water meter for displaying the water inlet flow in real time, wherein the water inlet intelligent water meter is arranged between the water inlet pipe and the water inlet control valve, and is connected with the control center.

Furthermore, the harbor basin simulator also comprises a drainage intelligent water meter for displaying the drainage flow in real time, wherein the drainage intelligent water meter is arranged between the drainage pipe and the drainage control switch, and is connected with the control center.

The invention also provides a test method of the harbor basin simulator, which comprises the harbor basin simulator, and the test method comprises the following steps: a, starting the control center, and making waves by a wave maker according to set parameters; b, opening the water inlet control valve, and making the flow by the flow-making device according to the set parameters to realize the change of the rising tide and the change of the surface velocity within the specified time; c, turning on the drainage control switch, and the current generating device generates current according to the set parameters to realize ebb tide change and flow rate change within the specified time; d, opening the mobile platform, and controlling the mobile platform to move to a designated position through the control center; e, controlling the sanding-adding device to move on the mobile platform through the control center to realize the sanding-adding operation of the harbor basin; f, controlling the sampling device to move on the mobile platform through the control center to realize fixed-point sampling operation; g. controlling the shooting device to move on the mobile platform through the control center to realize fixed-point shooting operation Compared with the prior art, the harbor basin simulator and the test method provided by the invention have the beneficial effects that the harbor basin is provided with a current generating device, a mobile platform, a sampling device, a sanding-adding device and a shooting device, and the current generating device can realize the change of the tide and water flow velocity of rising and falling tides within a specified time; The sampling device, the sanding-adding device and the photographing device are respectively arranged on the mobile platform in a sliding manner, and the mobile platform is arranged on the harbor basin in a sliding manner, and the sampling of the sediment in the harbor basin at any position can be realized through the movement of the sampling device on the mobile platform; Through the movement of the sanding-adding device on the mobile platform, the sanding-adding operation can be carried out at any position of the harbor basin; By moving the shooting device on the mobile platform, shooting and monitoring can be carried out at any position of the harbor basin, so as to monitor the physical parameters of waves and tidal currents (such as wave period, wave direction, wave climb, water flow velocity) and the evolution of geomorphic features of beaches in the pixel time series.

The harbor basin simulator of the invention can realize tidal change of tidal current, realize uniform sanding-adding , photograph waves, physical parameters of tidal current and geomorphic features in the whole process, and realize moving, fixed-point and uniform sampling; It can be realized that under the similarity criterion, the matching index between the model data measured by the harbor basin simulator and the prototype data is high and the data accuracy is high.

BRIEF DESCRIPTION OF THE FIGURES FIG. 1 is a schematic structural diagram of a harbor basin simulator provided by the present invention.

FIG. 2 is a left view of the sampling device provided by the present invention.

FIG. 3 1s a left view of the photographing device provided by the present invention.

FIG. 4 is a left side view of the sanding-adding device provided by the present invention.

FIG. 5 is a top view of the sanding-adding device provided by the present invention.

DESCRIPTION OF THE INVENTION In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and examples. It should be understood that the specific embodiments described here are only used to explain the invention, and are not used to limit the invention.

It should be noted that when an element is said to be "fixed" or "disposed" on another element, it can be directly or indirectly on the other element. When an element 1s said to be "connected" to another element, it can be directly connected to another element or indirectly connected to the other element.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plural" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be understood that the terms center, length, width, thickness, top, bottom, front, back, left, right, vertical, horizontal, top and bottom.

In the description of the present invention, it should be noted that the terms "installation", "connection" and "communication" should be broadly understood, for example, they can be fixed connection, detachable connection or integrated connection. It can be mechanically connected or electrically connected; It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction between two elements. For ordinary technicians in the field, the specific meanings of the above terms in the present invention can be understood according to specific situations.

For convenience of description, three coordinate axes perpendicular to each other in space are defined as X-axis, Y-axis and Z-axis, in which X-axis and Y-axis are two coordinate axes perpendicular to each other in the same horizontal plane, and Z-axis is the coordinate axis in the vertical direction. The X, Y and Z axes are perpendicular to each other in space. There are three planes, namely, XY plane, YZ plane and XZ plane. Among them, XY plane is a horizontal plane, XZ plane and YZ plane are vertical planes, and XZ plane is perpendicular to YZ plane.

In the prior art, the current wave maker 4 can't simulate the tidal power and change, and there is a big gap with the display situation, which seriously affects the accuracy of experimental data. According to the invention, by adding the current generating device 5, the mobile platform 6, the sampling device 7, the sanding-adding device 8 and the shooting device 9 to the harbor pool 1, the current generating device 5 can realize the change of the tide and water flow velocity of the rising and falling tide within a specified time; Sampling device 7 can realize sampling and detection of sediment at any position in harbor basin 1; The sanding-adding device 8 can realize the sanding-adding operation of the harbor basin 1 to simulate the concentration of suspended sediment near the shore; The shooting device 9 can shoot the whole process and record the physical parameters and geomorphic features of waves and tidal currents.

Example 1 Referring to FIG. 1 to FIG. 5, a description will now be given of a simulation device for a harbor basin provided in the first embodiment of the present invention. The harbor basin simulator includes a harbor basin 1 for simulating the actual harbor channel, coast or estuary, a control center (not shown in the attached drawings), a wave generator 4 for generating waves with different wavelengths and wave heights, a current generator 5 for simulating the rising and falling tides, a mobile platform 6 slidably arranged on the harbor basin 1, a sampling device 7 for sampling the sediment in the harbor basin 1 at fixed points, a sanding-adding device 8 for sanding-adding to simulate the suspended sediment concentration, A camera device 9 sliding on the mobile platform 6, a water inlet control valve 11 for controlling the flow generator 5 to realize the rising tide, and a drainage control switch 13 for controlling the flow generator 5 to realize the falling tide; The wave generator 4 is arranged in the harbor basin 1, the current generator 5 is arranged at one side of the wave generator 4, the sampling device 7 is slidably arranged on the mobile platform 6, and the sand adding device 8 is slidably arranged on the mobile platform 6.

The above-mentioned sampling device 7 can include a support seat slidably arranged on the mobile platform 6, a support rod connected with the support seat and a sampling claw arranged at the free end of the support rod, and the sampling claw can be controlled by the control center to open and close, so as to sample the sediment in the harbor basin and facilitate subsequent testing.

The above-mentioned sanding-adding device 8 may include a storage hopper slidably arranged on the mobile platform 6, a discharge pipe communicated with the storage hopper, and a valve arranged on the storage hopper. When a certain position in the harbor basin needs sanding-adding, insert the discharge pipe into the corresponding position, open the valve, and discharge the sediment in the storage hopper to the corresponding position through the discharge pipe, so as to realize the rapid sanding- adding operation.

The above-mentioned photographing device 9 can include a first photographing component and a second photographing component which are slidably arranged on both sides of the harbor basin, and the first photographing component and the second photographing component can respectively photograph and detect the wave wavelength and wave height in real time. The shooting device 9 can also include an underwater shooting assembly slidably arranged on the mobile platform 6, which 1s used for real-time shooting and detecting the distribution of mud and sand in the harbor basin. The pictures or videos shot by the first shooting component, the second shooting component and the underwater shooting component can be transmitted to the control center, thus facilitating the effective test of the harbor basin.

The control center can effectively control the wave generator 4, the flow generator 5, the mobile platform 6, the sampling device 7, the sanding-adding device 8 and the shooting device 9.

According to the invention, because the flow generating device 5, the moving platform 6, the sampling device 7, the sanding-adding device 8 and the photographing device 9 are arranged on the harbor basin 1, the flow generating device 5 can realize the change of the tide and water flow velocity in the rising and falling tide within a specified time; The sampling device 7, the sanding-adding device 8 and the shooting device 9 are respectively arranged on the mobile platform 6 in a sliding manner, and the mobile platform 6 is arranged on the harbor basin 1 in a sliding manner, so that the sampling device 7 can be moved on the mobile platform 6 to take samples at any position in the harbor basin 1; The sanding-adding device 8 can move on the mobile platform 6 to realize the sanding-adding operation at any position of the harbor basin 1; Through the movement of the photographing device 9 on the mobile platform 6, the photographing and monitoring of any position of the harbor basin 1 can be realized, so that the physical parameters of waves and tidal currents (such as wave period, wave direction, wave climbing, water flow velocity) and the evolution of geomorphological features of beaches can be monitored in the pixel time series.

The harbor basin simulator of the invention can realize tidal change of tidal current, realize uniform sanding-adding, photograph waves, physical parameters of tidal current and geomorphic features in the whole process, and realize moving, fixed-point and uniform sampling; It can be realized that under the similarity criterion, the matching index between the model data measured by the harbor basin simulator and the prototype data is high and the data accuracy is high.

Example 2 Please refer to FIG. 1 together, this embodiment is an improvement based on the first embodiment, and the difference between this embodiment and the first embodiment is that the harbor basin simulator also includes a wave-eliminating area 3 for eliminating waves, which is arranged on the other side of the wave maker 4. Specifically, the wave generator 4 is arranged between the current generator 5 and the wave-dissipating zone 3. With this structure, when the wave generator 5 simulates the process of rising and falling tide, the wave generator 4 generates waves with different wavelengths and wave heights. By setting the wave dissipation area 3 at one side of the wave generator 4, the climbing height of the waves hitting the non-test area of the harbor basin 1 can be effectively reduced, thereby reducing the wavelength and wave height of the waves and playing a certain buffering and eliminating role.

Example 3 Please refer to FIG. 1 and FIG. 2 together. This embodiment is an improvement based on the first embodiment. The difference between this embodiment and the first embodiment is that the two sides of the harbor basin 1 are respectively provided with guide rails 2, one end of the mobile platform 6 is slidably arranged on one guide rail 2, and the other end is slidably arranged on the other guide rail 2. With this structure, the moving platform 6 is transversely arranged on the harbor basin 1, and can slide left and right on the harbor basin 1 through the guide rail 2, so that the positions of the sampling device 7, the sand adding device 8 and the shooting device 9 which are arranged on the moving platform 6 can be adjusted, and the sampling device 7, the sanding-adding device 8 and the shooting device 9 can slide on the moving platform 6 respectively, so that the sampling device 7, the sanding-adding device 8 and the shooting device 9 can be moved at any position on the harbor basin 1 by double movement, which is convenient to realize.

In other embodiments, the mobile platform 6 can also be slidably arranged on the harbor basin 1 in other ways, which is not exclusively limited here.

Example 4 Please refer to FIG. 1. This embodiment is an improvement based on the first embodiment. The difference between this embodiment and the first embodiment is that the flow generating device 5 is provided with a water inlet pipe (not shown in the figure) and a water outlet pipe (not shown in the figure), a water inlet control valve 11 is arranged on the water inlet pipe, and a water outlet control switch 13 is arranged on the water outlet pipe. With this structure, the water inflow of the water inlet pipe can be controlled by the water inlet control valve 11, and the flow generating device 5 can generate flow according to the set parameters, so as to realize the change of rising tide and tide and the change of surface velocity within a specified time.

Example 5 Please refer to FIG. 1 to FIG. 5 together. This embodiment is an improvement based on the fourth embodiment. The difference between this embodiment and the fourth embodiment is that: the harbor basin simulator also includes an inlet intelligent water meter 10 for real-time display of inlet flow, which is arranged between the inlet pipe and the inlet control valve 11 and is connected with the control center. With this structure, the water inlet intelligent water meter 10 can display the water inlet flow in real time, and then can record the effective data such as the water inlet flow and water inlet rate within a specified time.

Example 6 Please refer to FIG. 1 together, this embodiment is an improvement based on the fourth embodiment. The difference between this embodiment and the fourth embodiment is that the harbor basin simulator also includes a drainage intelligent water meter 12 for displaying the drainage flow in real time, which is arranged between the drainage pipe and the drainage control switch 13, and is connected with the control center. With this structure, the drainage flow rate can be displayed in real time by the drainage intelligent water meter 12, and then effective data such as drainage flow rate and drainage rate can be recorded in a specified time.

Example 7

Now, the test method of the harbor basin simulator provided by the seventh embodiment of the present invention will be described. The test method includes the following steps: a. staring the control center, and the wave maker 4 makes waves according to the set parameters. The wave maker 4 can realize two kinds of motion, namely, push-swing- push-swing, swing-push-swing, and push-swing-swing, and so on, and can make waveforms that meet the test requirements. The first shooting component is arranged at the side of the harbor basin near the water outlet of the wave maker 4, and the second shooting component is arranged at the other side of the harbor basin far away from the wave maker 4, so that the waves produced by the wave maker 4 can be tested from end to end to determine whether the waves meet the test requirements, and further improve the accuracy of data collected in the test.

b, opening the water inlet control valve 11, and the current generator 5 generates current according to the set parameters to realize the change of tide and tide and the change of surface velocity within the specified time. The first shooting component and the second shooting component can shoot the high tide in real time, and feed it back to the control center in real time, and compare and analyze it with the preset value, thus improving the accuracy of data collected in the test.

c. turning on the drainage control switch 13, and the flow generator 5 generates flow according to the set parameters to realize the ebb tide change and flow rate change within the specified time. The first shooting component setting and the second shooting component setting can shoot the ebb tide in real time, and feed it back to the control center in real time, and compare and analyze it with the preset value, thus improving the accuracy of the data collected in the test.

d, opening the mobile platform 6, and controlling the mobile platform 6 to move to the designated position through the control center. The mobile platform 6 can realize horizontal movement and vertical lifting on the harbor basin, and improve the flexibility of the mobile platform 6.

e, controlling the sanding-adding device 8 to move on the mobile platform 6 through the control center to realize the sanding-adding operation of the harbor basin 1. The sanding-adding device 8 can move in the X-axis, Y-axis and Z-axis directions on the mobile platform 6, thus improving the mobility flexibility of the sanding-adding device 8 and facilitating the comprehensive operation of the inner area of the harbor basin.

f, controlling the sampling device 7 to move on the mobile platform 6 by the control center to realize the fixed-point sampling operation. The sampling device 7 can move in the X-axis, Y-axis and Z-axis directions on the moving platform 6, thereby improving the moving flexibility of the sampling device 7, which facilitates the comprehensive operation of the inner area of the harbor basin.

g, controlling the shooting device 9 to move on the mobile platform 6 through the control center to realize the fixed-point shooting operation. The shooting device 9 can move in the X-axis, Y-axis and Z-axis directions on the mobile platform 6, thereby improving the moving flexibility of the shooting device 9 and facilitating the comprehensive operation of the inner area of the harbor basin.

Specifically, the first camera assembly and the second camera assembly can move horizontally and vertically on the mobile platform 6, and the underwater camera assembly can move in the X-axis, Y-axis and Z-axis directions, so that the whole area of the harbor basin can be photographed, and more effective data can be obtained.

It should be understood that the sequence number of the above steps does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

Take the sea area near the Yellow River Delta as an example. Table 1 shows the similar scale of harbor basin simulator.

Table 1 Main similarity scale Scale name | symbol Similarity Scale name Symbol scale scale scale scale Velocity Au Sediment settling velocity scale scale Time scale | k 75 Suspended sediment concentration scale Flow scale | Ag Sediment scouring and silting time scale ratio ruler

According to the data, the actual water depth of the sea area near the Yellow River Delta is 13 .5m, the effective wave height is 10-20m, the water depth is 1.2-1.5m, the maximum wave height is 2m, the average period is 4.2-5.6s, and the wavelength is 27.7-

49.2m Based on the above information, through the test scale in Table 1, and through the corresponding adjustment of the harbor basin simulator, specifically, the water depth of harbor basin 1 is 13.5cm, the maximum wave height of wave generator 4 is set to 2cm, the wave period is set to 0.4s-0.6s, and the wavelength is set to 27.7cm-49.2cm.

At present, the measured maximum flow velocity in the sea area near the Yellow River Delta is 1.4m/s, the minimum flow velocity is 0.03m/s, and the average flow velocity is 0.53m/s. Therefore, according to the test scale of the harbor basin simulator, the flow velocity range of the current generation device 5 should be controlled to be

0.3cm/s-14cm/s. According to the records of China's Gulf Records (Volume III, the northern and eastern bays of Shandong Peninsula), the tides on the south side of the mouth of the Yellow River are irregular semi-diurnal tides, the duration of rising tide is less than that of falling tide, and the tidal range is about 1.5m. According to the test scale of the harbor basin simulator, the preset water depth of the static low water level is

13.5cm, the simple harmonic vibration of tidal range is 1.5cm, and the high water level is 15cm. The theoretical lowest tidal surface is used as the depth datum for the low water level.

At present, the average time of rising tide and falling tide in the waters near the Yellow River Delta is 5 hours and 23 minutes, and the average time of falling tide is 6 hours and 53 minutes, with the rising tide time accounting for 43. 8% and falling tide time accounting for 56. 2%. According to the time scale A, the period of the water level process of the harbor basin simulator is 600s, the rising tide time is 240s, and the falling tide time is 360s. Based on the above description, it is necessary to control the flow generating device 5 to realize the ebb and flow range of 1.5cm in 240s and the outlet to realize the ebb and flow range of 1.5cm in 360s.

The measured average suspended sediment turbidity in the sea area near the Yellow River Delta during the low tide period is 23 NTU (nephelometric turbidity unit). During the wave-making and current-making process, the uniform sanding-adding device 8 is used to observe the turbidity synchronously in the coastal sanding-adding of Harbor basin 1, and OBS-3A reaches the target turbidity and stops sanding-adding.

Harbor basin 1 simulates 36 tidal cycles. In the process of wave-making and current- making, ARGUS (Automatic Real-time Ground Full Deployment Detection Imaging System) camera in camera device 9 synchronously observes the physical parameters of tidal current and wave in Harbor basin 1, and monitors the change of tidal flat geomorphology characteristics. After the experiment, use the sampling device 7 on the mobile platform 6 to sample the tidal flat at a fixed point and evenly, and make particle size analysis. The harbor basin simulator and its test method provided by this application have the following beneficial effects:

1. Harbor basin simulator: 22.0m in length, 7.0m in width, 1.0m in depth and 0.6m in maximum working water depth. Install a low inertia servo motor segmented push-type wave maker 4 in the multifunctional integrated harbor pool 1 to realize wave height of 2cm-20cm and period of 0.5 s-5 s; Single regular wave and irregular wave can be realized; It can conduct physical model tests under the combined action of tidal current and waves or alone, and has the ability to study various dynamic response mechanisms of ports and marine buildings under the action of two-dimensional irregular waves, as well as the key technical and theoretical problems of the interaction between waves and buildings in coastal engineering;

2. The flow generator 5 can realize the change of the tide and water flow velocity of the rising and falling tide within a specified time; The sampling device 7, the sanding- adding device 8 and the shooting device 9 are respectively arranged on the mobile platform 6 in a sliding manner, and the mobile platform 6 is arranged on the harbor basin 1 in a sliding manner, so that the sampling device 7 can be moved on the mobile platform 6 to sample the sediment in the harbor basin 1 at any position; The sanding-adding device 8 can move on the mobile platform 6 to realize the sanding-adding operation at any position of the harbor basin 1; Through the movement of the shooting device 9 on the mobile platform 6, the shooting and monitoring of any position of the harbor basin 1 can be realized, so that the physical parameters of waves and tidal currents (such as wave period, wave direction, wave climb, water flow velocity) and the evolution of beach topography characteristics can be monitored in time series at pixel points.

3. Wave-dissipating zone 3 can effectively reduce the run-up of waves hitting the non-test zone of harbor basin 1, thus reducing the wave wavelength and wave height, and playing a certain buffering and eliminating role;

4. By horizontally arranging the mobile platform 6 on the harbor basin 1 and sliding left and right on the harbor basin 1 through the guide rail 2, the positions of the sampling device 7, the sanding-adding device 8 and the shooting device 9 arranged on the mobile platform 6 can be adjusted;

5. The water inflow of the water inlet pipe can be controlled by the water inlet control valve 11, and the flow generator 5 can make flow according to the set parameters, so as to realize the change of the rising tide and the change of the surface velocity within the specified time;

6. Through the intelligent water meter 10, the water inflow can be displayed in real time, and then effective data such as water inflow and water inflow rate can be recorded in a specified time.

7. The drainage flow can be displayed in real time by the drainage intelligent water meter 12, and then effective data such as drainage flow and drainage rate can be recorded in a specified time.

The above description is only the preferred embodiment of the present invention, and it is not intended to limit the present invention. Any modification, equivalent replacement and improvement within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims (7)

1. The invention relates to a harbor basin simulator, which is characterized by comprising a harbor basin, a control center, a wave generator for generating waves with different wavelengths and wave heights, a current generator for simulating rising and falling tides, a mobile platform slidably arranged on the harbor basin, a sampling device for sampling the sediment in the harbor basin at a fixed point, a sanding-adding device for sanding-adding to simulate the suspended sediment concentration, a shooting device slidably arranged on the mobile platform, and a device for controlling the current generator to realize rising tide; the wave generator is arranged in the harbor basin, the current generator is arranged at one side of the wave generator, the sampling device is slidably arranged on the mobile platform, and the sanding-adding device is slidably arranged on the mobile platform.

2. The harbor basin simulator according to claim 1, characterized in that the harbor basin simulator further comprises a wave-dissipating area for eliminating the waves, and the wave-dissipating area is arranged at the other side of the wave maker.

3. The harbor basin simulator according to claim 1, characterized in that guide rails are respectively arranged on both sides of the harbor basin, one end of the mobile platform is slidably arranged on one of the guide rails, and the other end of the mobile platform is slidably arranged on the other guide rail.

4. The harbor basin simulator according to claim 1, characterized in that the flow generating device is provided with a water inlet pipe and a drain pipe, the water inlet control valve is arranged on the water inlet pipe, and the drain control switch is arranged on the drain pipe.

5. The harbor basin simulator according to claim 4, characterized in that the harbor basin simulator further comprises a water inlet intelligent water meter for displaying the water inlet flow in real time, wherein the water inlet intelligent water meter is arranged between the water inlet pipe and the water inlet control valve, and is connected with the control center.

6. The harbor basin simulator according to claim 4, characterized in that the harbor basin simulator further comprises a drainage intelligent water meter for displaying the drainage flow in real time, wherein the drainage intelligent water meter is arranged between the drainage pipe and the drainage control switch, and is connected with the control center.

7. A test method of a harbor basin simulator is characterized by comprising the harbor basin simulator as claimed in any one of claims 1-6, and the test method comprises the following steps: a, starting the control center, and making waves by a wave maker according to set parameters; b, opening the water inlet control valve, and making the flow by the flow-making device according to the set parameters to realize the change of the rising tide and the change of the surface velocity within the specified time; c, turning on the drainage control switch, and the current generating device generates current according to the set parameters to realize ebb tide change and flow rate change within the specified time; d, opening the mobile platform, and controlling the mobile platform to move to a designated position through the control center; e, controlling the sanding-adding device to move on the mobile platform through the control center to realize the sanding-adding operation of the harbor basin; f, controlling the sampling device to move on the mobile platform through the control center to realize fixed-point sampling operation; g, controlling the shooting device to move on the mobile platform through the control center to realize fixed-point shooting operation.