CN216594074U - Multifunctional ocean hydrodynamic structure model test system - Google Patents
Multifunctional ocean hydrodynamic structure model test system Download PDFInfo
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- CN216594074U CN216594074U CN202123229616.0U CN202123229616U CN216594074U CN 216594074 U CN216594074 U CN 216594074U CN 202123229616 U CN202123229616 U CN 202123229616U CN 216594074 U CN216594074 U CN 216594074U
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Abstract
The utility model discloses a multifunctional marine hydrodynamic structure model test system.A front side wall and a rear side wall of a pressure reduction container are respectively provided with an observation light port, a left side wall and a right side wall of the pressure reduction container are respectively provided with a light source window, the top end of the pressure reduction container is provided with a top sealing cover, and the bottom of the pressure reduction container is provided with a water injection port and a water discharge port; the continuous light source faces to the light source window on one side of the pressure reducing container, and the high-speed camera faces to the light source window on the other side of the pressure reducing container; the bubble generator is connected with an electrode port on the pressure reduction container so as to provide electric energy for the discharge electrode; the vacuum power device is connected with the pressure reducing container and is used for vacuumizing the pressure reducing container; the analysis device is connected with the high-speed camera and the bubble generator, the high-speed camera captures bubbles generated by the bubble generator and the pulsation, collapse and crushing processes of the bubbles, and then the bubbles are transmitted to the analysis device, and the analysis device analyzes data related to the bubbles. The utility model can safely simulate various hydrodynamic tests such as underwater explosion and the like, and has observability and lower cost.
Description
Technical Field
The utility model belongs to the technical field of ocean engineering, and particularly relates to a multifunctional ocean hydrodynamic structure model test system, which relates to a fluid dynamics experiment and can be used for simulating various hydrodynamic experiments such as migration motion of bubbles influenced by gravity in real underwater explosion in a low-pressure environment.
Background
The continuous development of human beings on the ocean promotes the development of hydrodynamics, and the hydrostatics and dynamics become the research directions of scholars at home and abroad, particularly underwater explosion bubble dynamics. The early underwater explosion test adopts a real explosive loading explosion test, the test is limited by the amount of explosive, the initiation mode and the environmental factors of an explosion water area, so that the bubble phenomenon is complex and variable, the underwater test is difficult to simulate, the safety is poor, the test cost is remarkable, and a large-scale analogy test cannot be carried out.
In recent years, with the rapid development of high-speed photography technology, scholars at home and abroad create a research method of a cavitation theory according to a similar theory, and most of bubble motion characteristic test researches adopt spark bubbles and electrolytic bubbles to replace real TNT explosives, but when a high-voltage circuit is adopted in the test, the safety is poor, and the test cost is high; when a low-voltage circuit is adopted in a test, the radius of generated bubbles is small, the influence of gravity is not considered when the interaction of the bubbles with a free surface and a boundary is analyzed, so that the influence of buoyancy in the moving process of the bubbles is not obvious, but the gravity of the bubbles in the underwater explosion bubble test of a limited water area is a particularly important and indispensable influence factor and needs to be considered particularly.
In addition, many test devices have complex circuits and complex operation, and have high technical requirements on personnel. How to design a set of bubble test device, it is considered to be the influence of buoyancy, the bubble that produces reaches migration similar with real explosion bubble, cost less test expense, test security is high and the bubble look is clear is the important research direction of fluid dynamics simulation experiment.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: the utility model aims to solve the defects in the prior art, and provides a multifunctional ocean hydrodynamic structure model test system which can simulate various hydrodynamic tests such as underwater explosion and the like, greatly improve the safety and observability of the tests, reduce the test cost and better present the interaction phenomenon of bubbles and complex boundaries.
The technical scheme is as follows: the utility model discloses a multifunctional ocean hydrodynamic structure model test system which comprises a pressure reduction container, a bubble generator, a continuous light source, a vacuum power device, a high-speed camera and an analysis device, wherein the pressure reduction container is connected with the bubble generator; the side walls of the front side and the rear side of the pressure reducing container are provided with observation light ports, the side walls of the left side and the right side of the pressure reducing container are provided with light source windows, the top end of the pressure reducing container is provided with a top sealing cover, and the bottom of the pressure reducing container is provided with a water filling port and a water outlet; the continuous light source faces to a light source window on one side of the pressure reducing container, and the high-speed camera faces to a light source window on the other side of the pressure reducing container; the bubble generator is connected with an electrode port on the pressure reduction container so as to provide electric energy for the discharge electrode; the vacuum power device is connected with the pressure reducing container and is used for vacuumizing the interior of the pressure reducing container; the analysis device is connected with a high-speed camera and a bubble generator, the high-speed camera (for example, a Phantom V12.1 high-speed camera can be adopted) captures bubbles generated by the bubble generator and the pulsation, collapse and crushing processes of the bubbles, and then transmits the bubbles to an analysis device (for example, Phantom675.2 can be adopted), and the analysis device analyzes data related to the bubbles.
According to the utility model, a high-speed camera and a matched analysis device are used for shooting and capturing a test phenomenon, and measuring test parameters such as bubble radius, bubble motion period, motion track and collapse speed in an image, so that a series of hydrodynamic simulation tests such as underwater explosion bubble migration motion and migration motion of bubbles of a deep-water submarine under the influence of buoyancy and gravity can be carried out.
Furthermore, in order to increase the mobility and observability of the whole test system, the pressure reduction container comprises a main body cabin, a top sealing cover and a base, and a pair of light source windows and a pair of observation windows are respectively arranged on the corresponding side walls of the main body cabin; the top in main part cabin is from all around with the arc transition become main part top mouth (circumference top mouth), and top closing cap connects in main part top mouth, and main part cabin bottom passes through base fixed mounting in scene.
Further, for guaranteeing whole test system's use convenience, the top in main part cabin still is equipped with two protruding exports (and with G1/2 internal thread tube socket seal), and sealing connection has vacuum manometer and extraction pressure air pump extraction opening on these two protruding exports respectively, vacuum power device adopts the vacuum aspiration pump, and extraction pressure air pump extraction opening links to each other with the vacuum aspiration pump, and this vacuum aspiration pump's air exhaust rate 15L/s, extreme pressure 0.06pa, power are 1.5 kw.
In order to ensure the lighting of the light source window and the multi-angle shooting of the observation window, the whole main body cabin is a cuboid (for example, the length, the width and the height can be designed to be 1200 mm, 800 mm and 800 mm) and is made of carbon alloy steel, the thickness of the main body cabin is 10mm, the whole observation window is a rectangular opening (the length and the width can be designed to be 900 mm, 600 mm), and the whole light source window is a rectangular opening (the length and the width can be designed to be 600 mm, 600 mm); the thickness of the glass material of the observation window and the light source window is 40mm, and the whole main cabin can bear 3-4 atmospheric pressures.
Furthermore, an electrode port which is subjected to insulation treatment is arranged on the top sealing cover, the upper part of the electrode port is connected with a discharge circuit of the bubble generator, and the lower part of the electrode port is connected with a discharge electrode.
Furthermore, a 220V alternating current power supply is arranged on the bubble generator, and a control circuit, a charging circuit and a discharging circuit are connected in parallel on the alternating current power supply;
the power supply indicator lamp L3, the AC-to-DC power supply U, the AC contactor 1 and the AC contactor 2 form a control circuit; the alternating current contactor 1 comprises an indicator light L1 and a switch K1 which are connected with the relay in series, and the alternating current contactor 2 comprises an indicator light L2 and a switch K2 which are connected with the relay in series;
the alternating current-to-direct current power supply U, the capacitor C, the resistor R and the switch KM1 controlled by the alternating current contactor 1 are sequentially connected in series to form a charging circuit, and two ends of the capacitor C are connected in parallel with a voltmeter;
the discharging circuit is composed of two electrodes connected in parallel with two ends of a capacitor C, and a switch KM2 controlled by an alternating current contactor 2 is connected in series on a branch of the electrodes connected in parallel;
the voltage adjustable range of the AC-to-DC power supply U is 0.1V-220V; the capacitor C is three parallel capacitors with the rated voltage of 250V and the capacitance of 2200 microfarads; the switch KM1 and the switch KM2 are both alternating current contactors of a separate charging and discharging circuit and a control circuit.
Furthermore, the continuous light source adopts an illuminating lamp with the voltage of 120-240 volts and the power of 2000 watts.
Furthermore, the observation window and the light source window are both in a dismounting type; the observation window comprises a window base, a silica gel sealing gasket, an organic glass window plate, a silica gel sealing gasket and a window gland which are fixed outwards from the side wall of the main cabin in sequence, and is fixedly connected with the bolt through a hexagon nut; the light source window comprises a light source window base, a silica gel sealing gasket, an organic glass plate, a silica gel sealing gasket and a light source window gland which are sequentially fixed from the side wall of the main body cabin to the outside, and the light source window base, the silica gel sealing gasket, the organic glass plate, the silica gel sealing gasket and the light source window gland are fixedly connected through hexagon nuts and bolts.
Furthermore, the inner wall of the pressure reducing container is provided with a wall plate reinforcing rib, and anticorrosion and impedance materials are laid at other positions on the inner wall of the pressure reducing container except for the observation window and the light source window, and the inner wall of the pressure reducing container can also be used for preventing corrosion and damage of bubble jet flow to the container by sand blasting.
Further, the discharge electrode, the continuous light source and the high-speed camera are positioned at the same horizontal plane and height, so that a sufficient light source can be provided for experimental observation, and meanwhile, experimental phenomena can be better recorded and captured.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
(1) aiming at the fluid dynamics test, the utility model simulates the migration motion of bubbles influenced by a real underwater explosive meter and gravity or the migration motion process of bubbles of a deep water submarine under the influence of buoyancy and gravity, adopts an electric spark bubble test mode, and compared with the existing real explosive charging explosion test, the utility model has the advantages of simple and safe operation and reduced test danger and cost;
(2) according to the utility model, the sizes of the bubbles under different working conditions can be calculated through the similarity relation, the influence of the boundary on the bubbles is combined, the size of the pressure reduction container is determined through numerical simulation, meanwhile, the required thickness and materials of the pressure reduction container are determined by combining the structural strength theory, the test device is simple and convenient to manufacture, and the investment cost is low;
(3) the observation window is in a detachable mode, can be detached and provided with a wall plate or an ejection device, is used for simulating various hydrodynamic tests such as the interaction relationship between the motion law of bubbles and boundaries, missile water outlet and the like, and has diversity and repeatability;
(4) the utility model improves the observability of the test, the continuous light source is combined with the exposure requirement of the high-speed camera, the brightness and the placing height of the light source are reasonably adjusted, the best shooting effect is achieved, the bubbles generated in the test are clear and transparent, and the form of the jet flow in the bubbles can be clearly observed.
Drawings
FIG. 1 is a general layout of the present invention;
FIG. 2 is a front view of the pressure reduction vessel of the present invention;
FIG. 3 is a side view of a pressure relief container of the present invention;
FIG. 4 is a top view of the pressure relief container of the present invention;
FIG. 5 is a circuit diagram of the bubble generator of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
As shown in fig. 1 to 4, the multifunctional marine hydrodynamic structure model test system of the present invention comprises a pressure reduction container, a bubble generator, a continuous light source 31, a vacuum power device 32, a high-speed camera 41 and an analysis device 42; the side walls of the front side and the rear side of the pressure reducing container are provided with observation light ports, the side walls of the left side and the right side of the pressure reducing container are provided with light source windows, the top end of the pressure reducing container is provided with a top sealing cover 11, and the bottom of the pressure reducing container is provided with a water filling port 127 and a water outlet 126; the continuous light source 31 faces to a light source window on one side of the pressure reducing container, and the high-speed camera 41 faces to a light source window on the other side of the pressure reducing container; the bubble generator is connected with an electrode port 111 on the decompression container so as to provide electric energy for a discharge electrode 113; the vacuum power device 32 is connected with the decompression container and is used for vacuumizing the interior of the decompression container; the analysis device 42 is connected to the high-speed camera 41 and the bubble generator, the high-speed camera 41 (for example, the Phantom V12.1 high-speed camera 41 can be used) captures the bubbles generated by the bubble generator and the pulsation, collapse and fragmentation processes of the bubbles, and then transmits the bubbles to the analysis device 42 (for example, the Phantom675.2 can be used), and the analysis device 42 analyzes the data related to the bubbles.
In this embodiment, as shown in fig. 1, the continuous light source 31 is disposed at the right side of the pressure reduction container, and faces the light source window 124, so as to provide sufficient illumination for experimental observation, and the continuous light source 31 is an illumination lamp with a voltage of 120-240 volts and a power of 2000 watts; the high-speed camera 41 is disposed on the left side of the decompression container, facing the light source window 123. The discharge circuit of the bubble generator is connected to the internal electrode port 111 of the pressure-reducing container top cover 11 to supply electric power to the discharge electrode 113.
Because the gravity of the bubbles is a very important and indispensable influence factor in the real underwater explosion process, the buoyancy has a large influence on the movement of the bubbles under different boundary conditions, the electric spark test under the decompression condition is taken as an example to obtain the conclusion that the real underwater explosion working conditions of different charges are similar to the bubble movement of the decompression test by deducing the similar relation between the bubbles and the real underwater explosion bubbles under the pressure-changing condition of a test room, and therefore, the decompression test can simulate the migration movement process of the bubbles under the influence of the real underwater explosion and the gravity.
In order to overcome the defects of the prior art, the decompression container utilizes a Geers and Hunter model to calculate the radius and the migration height of bubbles in a typical working condition of underwater explosion, and the radius and the migration of electric spark bubbles corresponding to the electric spark bubbles in a decompression environment are obtained through a similar relation, so that the size of an observation window in the bubble test process is preliminarily determined; obtaining the influence range of the boundary on the dynamic behavior of the bubbles by using a Blake criterion in combination with a numerical simulation method, thereby determining the boundary size of the container; obtaining the thicknesses of the tank body of the pressure reduction container and the observation sight glass by combining a relevant theory of structural mechanics with a numerical simulation method and referring to the national standard of a fixed pressure container; and designing an ignition method of the closed space in the container according to the characteristics of the generation environment and the ignition mode of the electric spark bubble generation system.
The multifunctional ocean hydrodynamic structure model test system of the embodiment can reduce the pressure of the pressure reduction container according to the required pressure in the process of the simulation test, the discharge electrode 113 discharges under the condition of reduced pressure, because the ambient pressure around the bubbles is lower under reduced pressure, the bubbles expand in the fluid medium of lower pressure, thereby generating large-scale bubbles, combining with the whole process of recording the expansion and collapse of the bubbles by the high-speed camera 41, the initial parameters of the bubbles under the decompression condition can be obtained through the recorded initial radius, the maximum radius, the environmental pressure in the flow field and other parameters, thereby determining three parameters characterizing the initial characteristics of the bubbles, bringing into the solution of the fundamental equation of dimensionless bubble dynamics, can obtain the numerical solution of the bubbles at any time under the decompression environment so as to be popularized to the real underwater explosion process, the electric spark bubble test under the decompression condition can better show the interaction phenomenon of bubbles and complex boundaries under the laboratory environment.
The decompression container of the present embodiment includes a main body chamber 12, a top cover 11, and a base 13, as shown in fig. 4, a pair of light source windows and a pair of observation windows are respectively provided on the corresponding side walls of the main body chamber 12; the top of main part cabin 12 is from all around with arc transition into main part top opening 121 (circumference top opening), and top closing cap 11 is connected in main part top opening 121, and main part cabin 12 bottom is through channel-section steel base 13 fixed mounting in scene.
In order to ensure lighting of the light source window and multi-angle shooting of the observation window, the main body cabin 12 is a cuboid (1200 × 800) made of carbon alloy steel and 10mm in thickness, the observation window is a rectangular opening (900 × 600), and the light source window is a rectangular opening (600 × 600); the thickness of the glass material of the observation window and the light source window is 40mm, and the whole main cabin 12 can bear 3-4 atmospheric pressures.
As shown in fig. 2, the top end of the main chamber 12 of this embodiment is further provided with two convex outlets (the convex outlet 124 and the convex outlet 125 are sealed by a G1/2 female socket), the two convex outlets are respectively connected with a vacuum pressure gauge and a pressure air pump suction opening in a sealing manner, the vacuum power device 32 adopts a vacuum air pump, the pressure air pump suction opening is connected with the vacuum air pump, and the air pumping rate of the vacuum air pump is 15L/s, the limit pressure is 0.06pa, and the power is 1.5 kw. The top cover 11 is provided with an insulated electrode port 111, the upper part of the electrode port 111 is connected to a control circuit of the bubble generator, and the lower part of the electrode port 111 is connected to a discharge electrode 113.
The continuous light source 31 of the present embodiment is an illumination lamp with a voltage of 120-240 volts and a power of 2000 watts. The observation window and the light source window are both in a dismounting type; the observation window comprises a window base 1221, a silica gel sealing gasket 1222, an organic glass window plate 1223, a silica gel sealing gasket 1222 and a window gland 1224 which are fixed outwards from the side wall of the main body cabin 12 in sequence, and is fixedly connected with a bolt 1226 through a hexagon nut 1225; the light source window comprises a light source window base 1231, a silica gel sealing gasket 1232, an organic glass plate 1233, a silica gel sealing gasket 1232 and a light source window gland 1234 which are fixed outwards in sequence from the side wall of the main body cabin 12, and are fixedly connected through a hexagon nut 1235 and a bolt 1236.
As shown in fig. 5, the bubble generator of this embodiment is provided with a 220V ac power supply, and the ac power supply is connected in parallel with a control circuit, a charging circuit and a discharging circuit; the power indicator lamp L3, the AC-to-DC power supply U, the AC contactor 1 and the AC contactor 2 form a control circuit; the alternating current contactor 1 comprises an indicator light L1 and a switch K1 which are connected with the relay in series, and the alternating current contactor 2 comprises an indicator light L2 and a switch K2 which are connected with the relay in series; an AC-to-DC conversion power supply U, a capacitor C, a resistor R and a switch KM1 controlled by an AC contactor 1 are sequentially connected in series to form a charging circuit, and two ends of the capacitor C are connected in parallel with a voltmeter; the discharging circuit is composed of two electrodes which are connected with two ends of the capacitor C in parallel, and a switch KM2 controlled by the alternating current contactor 2 is connected in series on a branch of the electrodes which are connected in parallel; the voltage adjustable range of the AC-to-DC power supply U is 0.1V-220V; the capacitor C is three parallel capacitors with the rated voltage of 250V and the capacitance of 2200 microfarads; the switch KM1 and the switch KM2 are both alternating current contactors of a separate charging and discharging circuit and a control circuit.
The inner wall of the pressure reducing container of the embodiment is provided with the wall plate reinforcing rib 128, and the inner wall of the pressure reducing container is provided with anticorrosion and impedance materials at other positions except the observation window and the light source window, and the inner wall of the pressure reducing container can also be used for preventing corrosion and damage of bubble jet flow to the container by sand blasting.
The simulation test of the utility model comprises the following specific steps:
1) injecting degassed distilled water into a main cabin 12 of the pressure reduction container according to the working condition water depth, lifting a top sealing cover 11 by adopting a lifting device, connecting a discharge electrode 113 with an electrode port 111, and mounting a thin copper wire at the bottom end of the discharge electrode 113 for electrode presetting;
2) after the electrode presetting is successful, the top sealing cover 11 is sealed, then the precise vacuum pressure gauge is zeroed, the continuous light source 31 is turned on, the requirement of the intensity of the light source is met, the high-speed camera 41 is adjusted, the required focal length and the required shooting distance are selected, and the discharge electrode 112, the continuous light source 31 and the high-speed camera 41 are ensured to be located on the same plane and at the same height.
3) Connecting a computer with the high-speed camera 41 and the bubble generating device, starting the high-speed camera 41, running analysis software phantom675.2 on the computer, checking whether each device is normal or not, and ensuring that test control and recording of various data are synchronously carried out;
4) connecting the discharge circuit with the top end cover electrode port 111, starting a charging switch of the bubble generation device, and closing the charging switch to wait for triggering when a preset voltage is reached;
5) and starting the vacuum power device, closing the vacuum power device 32 when the required working condition pressure is reached, synchronously triggering the acquisition switch of the high-speed camera 41 and the discharge switch of the bubble generation device, enabling the capacitor to instantly discharge copper wires to burn to generate bubbles, capturing the whole process of pulsation, collapse and breakage of the bubbles by the high-speed camera 41, analyzing test data by using phantom675.2 software, and finishing the test.
Claims (10)
1. The utility model provides a multi-functional ocean hydrodynamic structure model test system which characterized in that: comprises a decompression container, a bubble generator, a continuous light source, a vacuum power device, a high-speed camera and an analysis device;
the side walls of the front side and the rear side of the pressure reducing container are provided with observation light ports, the side walls of the left side and the right side of the pressure reducing container are provided with light source windows, the top end of the pressure reducing container is provided with a top sealing cover, and the bottom of the pressure reducing container is provided with a water filling port and a water outlet; the continuous light source faces to a light source window on one side of the pressure reducing container, and the high-speed camera faces to a light source window on the other side of the pressure reducing container; the bubble generator is connected with an electrode port on the pressure reduction container so as to provide electric energy for the discharge electrode; the vacuum power device is connected with the pressure reducing container and is used for vacuumizing the interior of the pressure reducing container;
the analysis device is connected with the high-speed camera and the bubble generator, the high-speed camera captures bubbles generated by the bubble generator and the pulsation, collapse and crushing processes of the bubbles, and then the bubbles are transmitted to the analysis device, and the analysis device analyzes related data of the bubbles.
2. The multifunctional marine hydrodynamic structure model test system of claim 1, wherein: the pressure reduction container comprises a main body cabin, a top sealing cover and a base, wherein a pair of light source windows and a pair of observation windows are respectively arranged on the corresponding side walls of the main body cabin; the top in main part cabin is from transiting into main part top opening with the arc all around, and top closing cap is connected in main part top opening, and main part cabin bottom passes through base fixed mounting in scene.
3. The multi-functional marine hydrodynamic structure model test system of claim 2, wherein: the top in main part cabin still is equipped with two protruding exports, and sealing connection has vacuum manometer and extraction air pump extraction opening on these two protruding exports respectively, vacuum power device adopts the vacuum aspiration pump, and extraction air pump extraction opening links to each other with the vacuum aspiration pump, and this vacuum aspiration pump's air exhaust rate 15L/s, extreme pressure 0.06pa, power are 1.5 kw.
4. The multi-functional marine hydrodynamic structure model test system of claim 2, wherein: the whole cuboid that is in main part cabin, its length and width height does in proper order: 1200 mm, 800 mm and 800 mm, the thickness is 10mm and is made of carbon alloy steel, the whole observation window is a rectangular opening, the length and the width of the observation window are 900 mm and 600 mm, and the whole light source window is a rectangular opening, the length and the width of the light source window are 600 mm and 600 mm; the thickness of the glass material of the observation window and the light source window is 40 mm.
5. The multi-functional marine hydrodynamic structure model test system of claim 1, wherein: the top sealing cover is provided with an electrode port subjected to insulation treatment, the upper part of the electrode port is connected with a discharge circuit of the bubble generator, and the lower part of the electrode port is connected with a discharge electrode.
6. The multi-functional marine hydrodynamic structure model test system of claim 5, wherein: the bubble generator is provided with a 220V alternating current power supply, and the alternating current power supply is connected with a control circuit, a charging circuit and a discharging circuit in parallel;
the control circuit consists of a power indicator lamp L3, an AC-to-DC power supply U, an AC contactor 1 and an AC contactor 2; the alternating current contactor 1 comprises an indicator light L1 and a switch K1 which are connected with the relay in series, and the alternating current contactor 2 comprises an indicator light L2 and a switch K2 which are connected with the relay in series;
the alternating current-to-direct current power supply U, the capacitor C, the resistor R and the switch KM1 controlled by the alternating current contactor 1 are sequentially connected in series to form a charging circuit, and two ends of the capacitor C are connected in parallel with a voltmeter;
the discharging circuit is composed of two electrodes connected in parallel with two ends of a capacitor C, and a switch KM2 controlled by an alternating current contactor 2 is connected in series on a branch of the electrodes connected in parallel;
the voltage adjustable range of the AC-to-DC power supply U is 0.1V-220V; the capacitor C is three parallel capacitors with the rated voltage of 250V and the capacitance of 2200 microfarads; the switch KM1 and the switch KM2 are both alternating current contactors of a separate charging and discharging circuit and a control circuit.
7. The multi-functional marine hydrodynamic structure model test system of claim 1, wherein: the continuous light source adopts a lighting lamp with the voltage of 120-240 volts and the power of 2000 watts.
8. The multi-functional marine hydrodynamic structure model test system of claim 2, wherein: the observation window and the light source window are both in a dismounting type; the observation window comprises a window base, a silica gel sealing gasket, an organic glass window plate, a silica gel sealing gasket and a window gland which are fixed outwards from the side wall of the main cabin in sequence; the light source window comprises a light source window base, a silica gel sealing gasket, an organic glass plate, a silica gel sealing gasket and a light source window gland which are sequentially fixed from the side wall of the main body cabin to the outside.
9. The multi-functional marine hydrodynamic structure model test system of claim 1, wherein: the inner wall of the pressure reducing container is provided with a wallboard reinforcing rib, and anticorrosion and impedance materials are laid at other positions on the inner wall of the pressure reducing container except for the observation window and the light source window.
10. The multi-functional marine hydrodynamic structure model test system of claim 1, wherein: the discharge electrode, the continuous light source and the high-speed camera are positioned on the same horizontal plane and at the same height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123229616.0U CN216594074U (en) | 2021-12-21 | 2021-12-21 | Multifunctional ocean hydrodynamic structure model test system |
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| CN116818270A (en) * | 2023-06-15 | 2023-09-29 | 哈尔滨工程大学 | Free water outlet test device for navigation body under decompression condition |
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