CN110359416B - Bidirectional multiple wave-absorbing device and use method thereof - Google Patents

Abstract

The invention discloses a bidirectional multiple wave-absorbing device and a use method thereof, wherein the device comprises a wave-absorbing chamber base, supporting side plates, an arc-shaped panel, a horizontal wave-absorbing plate, a vertical wave-absorbing plate and an energy-dissipating impeller, wherein the wave-absorbing chamber base is of a hollow non-top cuboid structure, the supporting side plates which are integrally formed with the wave-absorbing chamber base and are arc-shaped are symmetrically arranged at the top ends of the left side wall and the right side wall of the wave-absorbing chamber base, a rear baffle is fixedly arranged at the top end of the rear side wall of the wave-absorbing chamber base, and the arc-shaped panel is fixedly arranged on the arc-shaped surfaces of the two groups of supporting side plates. According to the invention, wave climbing and energy dissipation are realized through the arc-shaped panel, water flow vertical energy is consumed through the horizontal change Kong Xiaobo plate and is introduced into the wave dissipation chamber base, further the vertical change Kong Xiaobo plate consumes water body horizontal energy and stably guides out the water body through the energy dissipation impeller in the water outlet hole, the combination of the two-way wave dissipation plates can improve wave dissipation efficiency, weaken wave reflection, and can be widely applied to wave water tank experiments.

Description

A two-way multiple wave elimination device and its use method

Technical field

The invention belongs to the technical field of water flow wave elimination devices, and specifically relates to a two-way multiple wave elimination device and its use method.

Background technique

The wave tank is an important place for wave-related research. Due to the limitations of the experimental site, the length of the wave tank is limited. When the wave propagates to the closed end of the tank, it will hit the end plate and be reflected. The reflected wave will be reflected between the wave plate and the boundary. reciprocating motion, forming secondary and multiple reflected waves. Reflected waves continuously interfere with the waves set in the experiment and superimpose each other to form a very complex wave system. If the reflected waves cannot be effectively eliminated, it will seriously affect the flow field around the experimental model. The wave elimination device is a device installed at the end of the wave tank to reduce wave energy and is an important equipment to prevent reflected waves from affecting the test results.

Different wave elimination devices have different wave elimination effects, and the quality of the wave elimination performance will directly affect the accuracy of the wave tank test. The wave elimination devices currently used in wave tanks can be divided into arc surface wave elimination devices, wire mesh array wave elimination devices, box type wave elimination devices and slope type wave elimination devices according to their geometric shapes. For water tanks with relatively fixed water depths, arc surface wave elimination devices have better wave elimination effects. However, the arc surface wave elimination device has an optimal water depth with the best wave elimination effect. Once the water depth in the water tank deviates from the optimal water depth, the device will not be able to achieve a good wave elimination effect. For water tanks with relatively fixed wave wavelengths and wave heights, the wire mesh array wave attenuation device has a better wave attenuation effect. However, for the wire mesh array wave elimination device, it is a defect that the air permeability does not change along the route. This makes the wave elimination device unable to achieve effective wave elimination effect while occupying a small space. The box-type wave elimination device and the wire mesh array The wave elimination principle of the wave elimination device is the same, and it also has the same wave elimination defects as the barbed wire array wave elimination device. The most common materials used in slope-type wave-absorbing devices are gravel and bamboo branches. They use wave climbing and water bodies to generate vortex in porous materials to consume energy. The gentler the slope, the better the wave-absorbing effect. Although this kind of wave elimination device has a simple structure, it also has some shortcomings: the wave elimination device takes up too much space, the wave elimination effect is not good, and the gravel will pollute the water body.

In order to eliminate the reflection effect of waves as much as possible, it is necessary to improve the structure of the existing wave elimination device to overcome the above defects.

Contents of the invention

Purpose of the invention: The purpose of the invention is to provide a two-way multiple wave elimination device and a method of use thereof, so as to solve the problem that the existing wave elimination device has structural shortcomings that lead to poor wave elimination effect and affect the accuracy of the wave tank test. The invention can improve the wave elimination efficiency of a single arc surface wave elimination device, weaken wave reflection, and prevent reflected waves from affecting test results.

Technical solution: a bidirectional multiple wave elimination device of the present invention, including a wave elimination chamber base, a supporting side plate, a curved panel, a horizontal wave elimination plate, a vertical wave elimination plate and an energy-consuming impeller. The wave elimination chamber base It is a hollow roofless rectangular parallelepiped structure. The tops of the left and right side walls of the wave-absorbing chamber base are symmetrically provided with support side plates with inclined surfaces that are integrally formed with the wave-absorbing chamber base. The top of the rear side wall of the wave-absorbing chamber base is fixed. There is a back baffle, and the arc-shaped panel is fixedly installed on the arc-shaped surface of the two sets of supporting side panels. The arc-shaped panel, the two groups of supporting side panels and the back baffle form a closed cavity structure. There are wave-absorbing strips and water-permeable holes distributed on the shape surface, and multiple sets of horizontal grooves are symmetrically provided on the opposite surfaces of the two sets of supporting side plates. Horizontal wave-absorbing plates are inserted into the multiple sets of horizontal grooves, so One end of the horizontal wave-absorbing plate is in contact with the curved panel, and the other end is inserted through the back baffle. Multiple sets of vertical grooves are symmetrically provided on the opposite surfaces of the left and right side walls of the base of the wave-absorbing chamber. , vertical wave-absorbing plates are inserted into multiple sets of vertical grooves, multiple sets of water outlets are provided on the front end of the wave-absorbing chamber base, and multiple sets of water outlets are connected to the wave-absorbing chamber base. The inner cavities are connected, and multiple sets of water outlets are equipped with energy-consuming impellers that rotate freely with the water flow.

Further, the wave-absorbing strips are divided into multiple rows and are distributed horizontally along the arc surface of the arc-shaped panel. The water permeable holes are divided into multiple rows and are distributed horizontally along the arc-shaped surface of the arc-shaped panel. The multiple rows of Wave-absorbing strips and multiple rows of water permeable holes are arranged at equal intervals and staggered. The wave absorbing strips can achieve wave climbing and energy dissipation, and the water permeable holes can realize the waves flowing into multiple sets of horizontal wave absorbing plates, and consume the vertical energy of the water flow through the horizontal variable hole wave absorbing plates.

Further, the wave-absorbing strips are prefabricated concrete square bars, the length of the wave-absorbing strips is the same as the diameter of the water-permeable holes, and the width of the wave-absorbing strips is the same as the radius of the water-permeable holes. Wave-absorbing strips and permeable holes absorb excess wave energy and introduce it into the horizontal wave-absorbing plate.

Furthermore, multiple sets of first wave-absorbing holes are densely distributed on the multiple sets of horizontal wave-absorbing plates between the two sets of supporting side plates, and the apertures of the first wave-absorbing holes on the multiple groups of horizontal wave-absorbing plates gradually increase from top to bottom. decreases, and the positions of the first wave-absorbing holes in any adjacent two sets of horizontal wave-absorbing plates among the multiple sets of horizontal wave-absorbing plates correspond one to one. The aperture of the first wave elimination hole gradually decreases, which can gradually consume the vertical energy of the water flow.

Furthermore, multiple sets of vertical wave-absorbing plates between the left and right side walls of the wave-absorbing chamber base are densely covered with a plurality of second wave-absorbing holes. The radial diameter of the wave absorbing holes gradually decreases in the direction of the water outlet, and the positions of the second wave absorbing holes in any adjacent two sets of vertical wave absorbing plates among the multiple sets of vertical wave absorbing plates correspond one to one. The diameter of the second wave elimination hole gradually decreases toward the water outlet hole, which can gradually consume energy in the horizontal direction of the water body.

Further, the cross section of the water outlet hole is circular or square. The round or square shape is convenient for installing the energy-consuming impeller, so that the energy-consuming impeller can rotate freely with the water flow.

Furthermore, multiple sets of connecting grooves are provided on the bottom plate of the base of the wave-absorbing chamber. The two symmetrical sets of vertical grooves form an integrated structure through connecting grooves. The bottom end of the vertical wave-absorbing plate is inserted In the trough. The vertical grooves and connecting grooves form an integrated structure to facilitate the insertion of vertical wave absorbing plates.

Further, multiple sets of horizontal grooves are equally spaced on the supporting side plates, the depth of the horizontal grooves is not less than half the thickness of the supporting side plates, and multiple sets of vertical grooves are located on the base of the wave elimination chamber. The left and right side walls of the base are equally spaced, and the depth of the vertical grooves is not less than one third of the thickness of the left and right side walls of the wave abatement chamber base.

Further, the thickness of the supporting side plates is not less than half of the thickness of the left and right side walls of the wave elimination chamber base.

The present invention also provides a method for using a two-way multiple wave elimination device, which includes the following steps:

(1) Measure the size of the water tank in the laboratory and calibrate the basic parameters of the wavelength and water depth of the water tank waves;

(2) Determine the dimensions of the arc panel and the abatement chamber base based on the obtained basic parameter data, including the radius of the arc panel and the length, width and height of the abatement chamber base;

(3) Fix the two-way multiple wave-absorbing device at the end of the water tank away from the wave generator, and determine the number of horizontal wave-absorbing plates and vertical wave-absorbing plates that need to be erected according to the wave intensity;

(4) Arrange at least three wave height meters on the front side of the wave elimination device to record the wave surface process and calculate the reflection coefficient of the waves.

Beneficial effects: The curved panel of the wave elimination device of the present invention reduces the slope of the water surface contact relative to the slope panel, increases the energy consumed by wave climbing, can effectively reduce wave reflection, and can pass through the wave elimination strips and water permeable holes on the surface of the curved panel. , absorb excess wave energy and introduce it into the horizontal wave-absorbing plate. The horizontal wave-absorbing plate is parallel to the wave propagation direction, which can avoid wave reflection in areas where wave energy is concentrated, further consuming water body energy, and passes through the vertical wave-absorbing plate and energy-consuming impeller. Steady conduction of the water body; multiple variable aperture wave absorption through the combination of curved panels and two-way wave absorption plates can greatly improve wave absorption efficiency and weaken wave reflection. At the same time, the wave absorption plate can be inserted into the groove as needed and can be easily disassembled. , can be widely used in wave tank experiments.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic diagram of the internal structure of the present invention;

Figure 3 is a schematic diagram of the connection structure between the supporting side plate and the horizontal wave-absorbing plate;

Figure 4 is a schematic structural diagram of a horizontal wave-absorbing plate;

Figure 5 is a schematic diagram of the base structure of the wave elimination chamber;

Figure 6 is a schematic diagram of the internal structure of the wave elimination chamber base;

Figure 7 is a schematic structural diagram of a vertical wave-absorbing plate;

Figure 8 is a diagram of the wave surface process measured by three wave height meters placed with a two-way multiple wave elimination device;

Figure 9 is a process diagram of the wave surface measured by three wave height meters without placing a two-way multiple wave elimination device.

Specific embodiments

The present invention will be further described below in conjunction with the accompanying drawings and examples:

The size of the two-way multiple wave elimination device of the present invention is determined by the test water tank and the wave conditions. In this embodiment, the size of the test water tank is length × width × height = 70m × 1m × 1.3m, the water depth is 0.5m, and the wavelength is 2m, where The radius of the curved panel 3 is not less than 5 times the height of the water tank, and the thickness is not less than 2cm. The diameter of the water penetration hole 8 is 1.5~2cm. The length of the base 1 of the wave elimination chamber is not less than 1.5 times the maximum wavelength. The width is the width of the water tank and the height is not less than 1.5 times the height of the water tank. If it exceeds one-third of the height of the sink, the thickness of the surrounding side walls is not less than 2cm, and the thickness of the bottom plate is not less than 3cm, the dimensions of each component of the device are:

The radius of the curved panel 3 is 7m, the thickness is 0.02m, and the diameter of the water permeable hole 8 is 0.02m;

The dimensions of the wave elimination chamber base 1 are length × width × height = 4m × 1m × 0.3m. The thickness of the surrounding side walls and bottom plate are both 0.03m. The outlet hole is square with a side length of 0.08m;

The thickness of the supporting side plate 2 is 0.02m, the size of the horizontal groove 9 is width × height = 0.01m × 0.01m, the size of the horizontal wave absorbing plate 4 is width × height = 1.02m × 0.01m; the vertical groove 11 and the connecting groove The width and depth of 12 are both 0.01m, and the dimensions of the vertical wave-absorbing plate 5 are length × width × height = 1.02m × 0.01m × 0.3m;

As shown in Figures 1 and 2, the present invention is a bidirectional multiple wave elimination device, which includes a wave elimination chamber base 1, a supporting side plate 2, an arc panel 3, a horizontal wave elimination plate 4, a vertical wave elimination plate 5 and The energy-consuming impeller 6 and the wave-absorbing chamber base 1 are hollow rectangular parallelepiped structures. The tops of the left and right side walls of the wave-absorbing chamber base 1 are symmetrically provided with arc-shaped support sides with slopes integrally formed with the wave-absorbing chamber base 1 Plate 2, the thickness of the supporting side plate 2 is not less than one-half of the thickness of the left and right side walls of the abatement chamber base 1, and the supporting side plate 2 and the left and right side walls of the abatement chamber base 1 are smoothly connected through arc surfaces. The top of the rear side wall of the wave elimination chamber base 1 is fixed with a back baffle 15. The arc panel 3 is fixedly installed on the arc surfaces of the two sets of supporting side plates 2. The arc surface of the arc panel 3 faces the wave source, and the arc panel 3 faces the wave source. The curved panel 3 can increase the energy consumed by wave climbing and effectively reduce wave reflection. The curved panel 3, two sets of supporting side panels 2 and the back baffle 15 form a closed cavity structure. The curved surface of the curved panel 3 There are wave absorbing strips 7 and water permeable holes 8 distributed on the top. The wave absorbing strips 7 are prefabricated concrete square bars. The length of the wave absorbing strips 7 is the same as the diameter of the water permeable hole 8. The width of the wave absorbing strips 7 is the same as the radius of the water permeable holes 8. The wave absorbing strips 7 are Able to realize wave climbing and energy dissipation, the permeable holes 8 absorb excess wave energy and introduce it into the horizontal wave-absorbing plate 4;

At the same time, the wave-absorbing strips 7 on the arc-shaped panel 3 are divided into multiple rows and are distributed horizontally along the arc-shaped surface of the arc-shaped panel 3. The water-permeable holes 8 are divided into multiple rows and are distributed horizontally along the arc-shaped surface of the arc-shaped panel 3. Multiple rows of wave-absorbing strips 7 and multiple rows of water-permeable holes 8 are arranged at equal intervals, with the spacing being the same as the diameter of the water-permeable holes, to more efficiently absorb and introduce excess wave energy into the horizontal wave-absorbing plate 4;

As shown in Figures 3 and 4, multiple sets of horizontal grooves 9 are symmetrically provided on the opposite surfaces of the two sets of supporting side plates 2. The multiple sets of horizontal grooves 9 are equally spaced on the supporting side plates 2. The width of the horizontal grooves 9 The same as the depth, the depth of the horizontal groove 9 is not less than one-half of the thickness of the supporting side plate 2. Horizontal wave absorbing plates 4 are inserted into multiple sets of horizontal grooves 9. One end of the horizontal wave absorbing plate 4 is connected to the arc. The shaped panels 3 are in contact with each other, and the other end is inserted through the rear baffle 15. The multiple sets of horizontal wave absorbing plates 4 between the two sets of supporting side plates 2 are densely covered with a plurality of first wave absorbing holes 10. The aperture of the first wave absorbing hole 10 on the wave absorbing plate 4 gradually decreases from top to bottom, and the position of the first wave absorbing hole 10 on any two adjacent groups of horizontal wave absorbing plates 4 among the multiple groups of horizontal wave absorbing plates 4 In one-to-one correspondence, the horizontal wave absorbing plate 4 is parallel to the direction of wave propagation, which can avoid wave reflection in areas where wave energy is concentrated, further consuming water body energy. At the same time, the aperture of the first wave absorbing hole 10 gradually decreases, which can gradually consume the vertical energy of the water flow, and Introduce it into the base 1 of the wave elimination chamber;

As shown in Figures 5 to 7, multiple sets of vertical grooves 11 are symmetrically provided on the opposite surfaces of the left and right side walls of the wave abatement chamber base 1. The left and right side walls are equally spaced. The depth of the vertical grooves 11 is not less than one-third of the thickness of the left and right side walls of the wave elimination chamber base 1. Vertical grooves 11 are inserted into multiple groups of vertical grooves 11. For the direct wave-absorbing plate 5, multiple sets of connecting grooves 12 are provided on the bottom plate of the wave-absorbing chamber base 1. The two symmetrical sets of vertical grooves 11 form an integrated structure through the connecting grooves 12. The vertical wave-absorbing plate 5 has The bottom end is inserted into the connecting groove 12. The vertical groove 11 and the connecting groove 12 form an integrated structure to facilitate the insertion of the vertical wave absorbing plate 5. Multiple sets of vertical wave absorbing plates between the left and right side walls of the wave absorbing chamber base 1 A plurality of second wave elimination holes 13 are densely distributed on the direct wave elimination plate 5. The radial holes of the second wave elimination holes 13 on the multiple sets of vertical wave elimination plates 5 gradually decrease in the direction of the water outlet hole 14, and the multiple sets of vertical wave elimination holes 13 gradually decrease in the direction of the water outlet hole 14. The positions of the second wave elimination holes 13 on any adjacent two sets of vertical wave absorption plates 5 in the wave plate 5 correspond one to one. Since the diameter of the second wave elimination hole 13 gradually decreases toward the water outlet hole 14, it can be consumed The energy in the horizontal direction of the water body;

The wave-facing side of the wave-absorbing chamber base 1 is the front end side of the wave-absorbing chamber base 1. The front end surface of the wave-absorbing chamber base 1 is provided with multiple sets of water outlets 14. The cross-sections of the water outlets 14 are circular or square. The embodiment is square, and the number of water outlets 14 is 6. The size of the square water outlets 14 is the same as the radius of the energy-consuming impeller 6. Multiple groups of water outlets 14 are all connected to the inner cavity of the wave-absorbing chamber base 1. Inside the multiple groups of water outlets 14 They are all equipped with energy-consuming impellers 6 that rotate freely with the water flow to smoothly guide the water body in the wave-absorbing chamber base 1 to avoid wave reflection. The present invention can greatly improve the wave elimination efficiency and weaken the wave reflection through multiple variable aperture wave elimination combined with the curved panel 3 and the two-way wave elimination plate. At the same time, the wave elimination plate can be inserted into the slot as needed and can be easily disassembled, and can be widely used. Application to wave flume experiments.

The present invention also provides a method for using a two-way multiple wave elimination device, which includes the following steps:

(1) Measure the size of the water tank in the laboratory and calibrate the basic parameters of the wavelength and water depth of the water tank waves;

(2) Determine the dimensions of the arc-shaped panel 3 and the wave-absorbing chamber base 1 based on the obtained basic parameter data, including the radius of the arc-shaped panel 3 and the length, width and height of the wave-absorbing chamber base 1;

(3) Fix the two-way multiple wave-absorbing device at the end of the water tank away from the wave generator, and determine the number of horizontal wave-absorbing plates 4 and vertical wave-absorbing plates 5 that need to be erected according to the wave intensity;

(4) Arrange at least three wave height meters on the front side of the wave elimination device to record the wave surface process and calculate the reflection coefficient of the waves.

In order to verify the wave elimination efficiency of the two-way multiple wave elimination device, three fixed wave height meters were used to measure the wave surface process of the two-way multiple wave elimination device placed in the water tank and without the two-way multiple wave elimination device. The wave surface process is shown in Figure 8. The wave surface process measured without placing a two-way multiple wave elimination device in the water tank is shown in Figure 9. Then the wave reflection coefficients in the two situations were calculated according to the three-point method to be 2.7% and 11.4% respectively, indicating that the two-way multiple wave elimination device of the present invention can effectively weaken wave reflection and improve the wave-making efficiency of the water tank.

Claims (8)

1. The utility model provides a two-way multiple wave-absorbing device, includes wave-absorbing chamber base, supports curb plate, arc panel, horizontal wave-absorbing plate, vertical wave-absorbing plate and power consumption impeller, its characterized in that: the wave-absorbing chamber base is of a hollow non-roof cuboid structure, supporting side plates which are arc-shaped are symmetrically arranged at the top ends of the left side wall and the right side wall of the wave-absorbing chamber base and integrally formed with the wave-absorbing chamber base, a rear baffle is fixedly arranged at the top ends of the rear side walls of the wave-absorbing chamber base, the arc-shaped panels are fixedly arranged on the arc-shaped surfaces of the two groups of supporting side plates, the arc-shaped panels, the two groups of supporting side plates and the rear baffle form a closed cavity structure, wave-absorbing strips and water permeable holes are distributed on the arc-shaped surfaces of the arc-shaped panels, a plurality of groups of horizontal grooves are symmetrically arranged on the opposite surfaces of the two groups of supporting side plates, horizontal wave-absorbing plates are respectively inserted in the plurality of horizontal grooves, one ends of the horizontal wave-absorbing plates are contacted with the arc-shaped panels, the other ends of the horizontal wave-absorbing plates are penetrated and arranged on the rear baffle, a plurality of vertical grooves are symmetrically arranged on the opposite surfaces of the left side wall and the right side wall of the wave-absorbing chamber base, a plurality of groups of vertical grooves are respectively inserted in the vertical wave-absorbing plates, the front end surfaces of the wave-absorbing chamber base are provided with a plurality of groups of water outlet holes, a plurality of groups of water outlet holes are communicated with the inner cavity of the wave-absorbing chamber base, and a plurality of groups of water-absorbing impeller which are freely rotated along with water flow Kong Najun; a plurality of first wave-absorbing holes are densely distributed on a plurality of groups of horizontal wave-absorbing plates between the two groups of supporting side plates, the apertures of the first wave-absorbing holes on the plurality of groups of horizontal wave-absorbing plates gradually decrease from top to bottom, and the first wave-absorbing holes on any two adjacent groups of horizontal wave-absorbing plates in the plurality of groups of horizontal wave-absorbing plates are in one-to-one correspondence; a plurality of second wave-absorbing holes are densely distributed on a plurality of groups of vertical wave-absorbing plates between the left side wall and the right side wall of the wave-absorbing chamber base, the diameters of the second wave-absorbing holes on the plurality of groups of vertical wave-absorbing plates gradually decrease along the direction of the water outlet holes, and the positions of the second wave-absorbing holes on any two adjacent groups of vertical wave-absorbing plates in the plurality of groups of vertical wave-absorbing plates are in one-to-one correspondence.

2. The bi-directional multiple wave absorbing device of claim 1, wherein: the wave absorbing strips are divided into a plurality of rows and are horizontally distributed along the arc surface of the arc-shaped panel, the water permeable holes are divided into a plurality of rows and are horizontally distributed along the arc surface of the arc-shaped panel, and the wave absorbing strips and the water permeable holes are arranged in a staggered mode at equal intervals.

3. A bi-directional multiple wave absorbing device according to claim 2, wherein: the wave-absorbing strip is a precast concrete square strip, the length of the wave-absorbing strip is the same as the diameter of the water-permeable hole, and the width of the wave-absorbing strip is the same as the radius of the water-permeable hole.

4. The bi-directional multiple wave absorbing device of claim 1, wherein: the cross section of the water outlet hole is round or square.

5. The bi-directional multiple wave absorbing device of claim 1, wherein: the bottom plate of the wave-absorbing chamber base is provided with a plurality of groups of connecting grooves, two groups of symmetrical vertical grooves are integrally formed through the connecting grooves, and the bottom ends of the vertical wave-absorbing plates are inserted into the connecting grooves.

6. The bi-directional multiple wave absorbing device of claim 1, wherein: the horizontal grooves are distributed on the supporting side plate at equal intervals, the depth of each horizontal groove is not less than one half of the thickness of the supporting side plate, the vertical grooves are distributed on the left side wall and the right side wall of the wave-absorbing chamber base at equal intervals, and the depth of each vertical groove is not less than one third of the thickness of the left side wall and the right side wall of the wave-absorbing chamber base.

7. The bi-directional multiple wave absorbing device of claim 1, wherein: the thickness of the supporting side plates is not less than half of the thickness of the left and right side walls of the wave-absorbing chamber base.

8. The application method of the bidirectional multiple wave-absorbing device is characterized by comprising the following steps of:

(1) Measuring basic parameters of the size of a water tank in a laboratory, calibrating the wavelength of waves of the water tank and the water depth;

(2) Determining the sizes of the arc-shaped panel and the wave-absorbing chamber base according to the obtained basic parameter data, wherein the sizes comprise the radius of the arc-shaped panel, and the length, the width and the height of the wave-absorbing chamber base;

(3) Fixing a bidirectional multiple wave-absorbing device at one end of a water tank far away from a wave generator, and determining the number of horizontal wave-absorbing plates and vertical wave-absorbing plates to be erected according to the wave intensity;

(4) At least three wave height meters are arranged at the front end side of the wave elimination device and used for recording wave surface processes and calculating reflection coefficients of waves.