CN107219060A - The experimental system that a kind of interior ripple interacts with bubble - Google Patents
The experimental system that a kind of interior ripple interacts with bubble Download PDFInfo
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- CN107219060A CN107219060A CN201710370573.7A CN201710370573A CN107219060A CN 107219060 A CN107219060 A CN 107219060A CN 201710370573 A CN201710370573 A CN 201710370573A CN 107219060 A CN107219060 A CN 107219060A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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Abstract
The invention discloses the experimental system that a kind of interior ripple and bubble interact, including experimental tank, the disturbance unit that is arranged in experimental tank and bubble holding unit；At least include the different medium of two layers of density inside described experimental tank；Described disturbance unit includes disturbance board component, and the component includes a disturbance for being arranged on two medium interfaces and produces ripple in simulation；Meanwhile, bubble holding unit is opened, and ripple and bubble interaction in simulation, simulated bubble protect the response of the internal ripple of dive body Model.Compared to current interior ripple tank, interior ripple bubble tank of the invention can complete the experimental simulation of the above, make up with the single shortcoming of the simulated experiment of ripple tank inside.
Description
Technical field
The present invention relates to a kind of internal wave simulation method and system, the reality that ripple interacts with bubble in especially a kind of research
Test method and system.It is related to Patent classificating number G01 measurements；Test the quiet or dynamically balanced test of G01M machines or structure member；
Structure member not to be covered or the experiment of the test G01M10/00 hydrodynamics of equipment in other classifications；Ship test tank or water
In road or devices above.
Background technology
Internal wave of ocean is different with surface wave, and maximum amplitude occurs below sea, is a kind of gravitational wave, or is used to be interior
Property gravitational wave.The Wave parameters of interior ripple have very strong randomness, and its range scale is very wide：For Low-frequency Interal Waves, its wavelength
Up to tens or even hundreds of kilometer, velocity of wave is few meters per second, amplitude can reach more than hundred meters；And for short interior ripple, it
Wavelength be hundreds of meters to several kilometers of magnitude, velocity of wave up to tens centimetres per second, periodic regime from a few minutes to a few houres it
Between, the maximum interior tidal wave amplitude observed at present has 180 meters.
Interior ripple is to cause sea water mixing, form the major reason of fine structure.Inner waveguide causes the fluctuation of isopycnic surface, to sea
Upper facility also has destruction, when boat trip is above very shallow pycnocline, and its power causes to produce interior ripple at spring layer,
The kinetic energy of ship is consumed, therefore noticeable deceleration., can be because being risen and fallen by layering face if ripple in being met with when submarine or bathyscaph navigation
Influence and occur rapidly rippling.Submerged body may be thrown to the water surface or press to seabed by powerful interior ripple, jeopardize it
Navigation safety.As surface ship is navigated by water at wave, when submerged body is in internal wave of ocean regional activity, because interior ripple acts on it
Also " hogging ", " in hang down " phenomenon can be produced, structural break can be caused when serious.Moreover interior ripple also results in activity under water
Submarine is difficult to keep normal course and arm discharge posture, influence Underwater Battery transmitting hit rate.
The generation of internal wave of ocean should possess two conditions：One is the stable layering of density of sea water, and two be perturbation energy sources to be had, two
Person is indispensable.In seabed deep layer, when change of the seawater because of temperature, salinity, occur after density stratification, especially occur in seawater
Spring layer, through outer force-disturbances such as atmospheric pressure change, earthquake effect and ship motions, it is possible in having triggered inside seawater
Ripple.
Someone has carried out experimental study to the kinetic characteristic of the Slender Submerged Body under interior estimates effect, it is believed that Slender Submerged Body exists
The lower center of mass motion track of interior estimates effect is similar to ellipse, and its hang down/surging and horizontal stroke/pitching mainly by the wave amplitude factor with
The influence for depth of diving：When being located at interior estimates up/down side surging mainly occurs for submerged body, and is positioned across main during interior estimates position
Generation heaving.In addition investigation shows, the bubble between the warm layer interface of isothermal layer and jump can induce interior ripple.Above result of study is touched
The imagination that snorkeling body in wave field in strong is protected using bubble is sent out.Current interior ripple tank is mainly used in the unidirectional interior ripple of simulation or disturbed
Kinetoplast produce in ripple, due to the unicity of its effect, new when studying a question in face of some, occur in that certain limitation.
Such as：The mechanism problem of bubble interior ripple produced by the disturbance at pycnocline；Ripple and bubble INTERACTION PROBLEMS in simulation；Mould
Intend wave interaction problem in multiple directions；Under bubble protection, snorkeling body is alleviated research etc. by interior wave excitation motor imagination,
This need it is a kind of it is new can simulate the experimental method and system of interior ripple and bubble simultaneously, the present invention is research, verifies this class
New problem proposes a set of experimental method and experimental system.
The content of the invention
The proposition of the invention for being directed to problem above, and the experimental system that a kind of interior ripple developed interacts with bubble, are wrapped
The disturbance unit and bubble holding unit for include experimental tank, being arranged in experimental tank；
At least include the different medium of two layers of density inside described experimental tank；
Described disturbance unit includes disturbance board component, and the component includes a disturbance for being arranged on two medium interfaces and produces mould
Ripple in intending；Meanwhile, bubble holding unit is opened, ripple and bubble interaction in simulation, simulated bubble protection dive body Model pair
The response of interior ripple.
As preferred embodiment, described disturbance board component includes a horizontal disturbance plate I, the horizontal disturbance plate I by
Drive shaft through the disturbance plate drives, and completes rotation/swing of special angle.
As preferred embodiment, described disturbance board component includes a vertical disturbance plate, and the vertical disturbance plate is by passing through
The drive shaft for wearing vertical disturbance plate feather edge drives, and completes swing/rotation of special angle.
As preferred embodiment, described experimental tank is rectangle.
Further, described bubble holding unit is fixed on one end of experimental tank, is provided with the other end of experimental tank
The wave absorption area of wave absorption plate composition.
Further, described bubble holding unit is at least included along being parallel to each other that experimental tank width is set
Fixed Bubble blowing tube and mobile Bubble blowing tube；
In experimentation, the spacing of the fixed Bubble blowing tube of regulation and mobile Bubble blowing tube is associated, research from different interior ripple wavelength
The interaction of bubble and Nei Bo wavelength.
As preferred embodiment, described experimental tank is semicircle or approximate half-circular；
Curved wall arrangement of multiple disturbance board components along the experimental tank；
Wave absorption area described in the wave absorption plate composition of multiple base side walls along the experimental tank；
In experimentation, described multiple disturbance board components simultaneously or partially work, and simulate the interior ripple of different directions.
Further, described disturbance board component is by hydraulic control unit control；
Described hydraulic control unit includes：The hydraulic pressure main line being connected with total fuel tank and connection terminal helical oscillating motor
Hydraulic branch；
Described hydraulic pressure main line is disposed with filter, hydraulic pump, overflow valve, check valve and solenoid directional control valve；
Described hydraulic branch is disposed with solenoid directional control valve, bidirectional hydraulic lock and balanced valve.
Brief description of the drawings
, below will be to embodiment or existing for clearer explanation embodiments of the invention or the technical scheme of prior art
There is the accompanying drawing used required in technology description to do one simply to introduce, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the overall schematic of the embodiment of the present invention 1
Fig. 2 is the side view of the embodiment of the present invention 1
Fig. 3 is the overall schematic of the embodiment of the present invention 2
Fig. 4 is disturbance plate component diagram in the embodiment of the present invention 2
Fig. 5 uses hydraulic control unit schematic diagram for the present invention
Embodiment
To make the purpose, technical scheme and advantage of embodiments of the invention clearer, with reference to the embodiment of the present invention
In accompanying drawing, clear complete description is carried out to the technical scheme in the embodiment of the present invention：
As Figure 1-5：
The experimental system that a kind of interior ripple and bubble interact, including experimental tank 1 as system body and be arranged on
Disturbance unit and bubble holding unit inside experimental tank 1.
Two layers of density different medium 2 and medium 3 are at least contained in experimentation, in experimental tank 1, in order to simulate ocean
In interior ripple, typically all different densities salt solution, or be made up of fresh water and corresponding density salt solution.
Disturbance plate is arranged on two layer medium 2 and the interface of medium 3, medium interface is may be alternatively located at as optional embodiment
The horizontal disturbance plate I5 at place, or the arrangement vertical disturbance plate 4 in underlying dielectric 3, but require that the top of disturbance plate 4 is needed close to medium
2 and the interface of medium 3.
Horizontal disturbance plate I5 or vertical disturbance plate 4 are driven by helical oscillating motor 6, by the liquid for changing hydraulic line 7
Press the rotation of the output of direction controlling helical oscillating motor 6.When using horizontal disturbance plate I5, in order to ensure horizontal disturbance plate I5's
Highly, in interface, it is necessary in the mounting bracket of tank 1.Adjustable for height telescope support can be used, vertical disturbance plate is being used
When 4, support can be packed up or dismantled.
Described disturbance unit includes disturbance board component, and the component includes a disturbance for being arranged on two medium interfaces and produces mould
Ripple in intending；Meanwhile, bubble holding unit is opened, ripple and bubble interaction in simulation, simulated bubble protection dive body Model pair
The response of interior ripple.
As preferred embodiment, described horizontal disturbance plate I5 is disturbed by the drive shaft drive through the disturbance plate
Dynamic plate is relative to drive shaft axial symmetry, during experiment, has drive shaft to drive the rotation/swing for completing special angle.
As another preferred embodiment, described vertical disturbance plate 4 is by the drive through vertical disturbance plate feather edge
Moving axis drives, and completes swing/rotation of special angle.
As preferred embodiment, in embodiment 1, i.e., one section of rectangle experimental tank is (relative to bubble holding unit
With the other end of disturbance plate) and embodiment 2 in, i.e., the lateral sidewalls of semicircle experimental tank are set respectively is cut by slicing plate is enough
Ripple area, it is to avoid interior ripple contact tests cell wall and causes error.
As preferred embodiment, disturbance board component by hydraulic control unit control, as shown in figure 5, it is preferred that implementation
In, hydraulic control unit 5 includes a hydraulic pressure main line 35, and the top on hydraulic pressure main line 35 connects a total fuel tank 41, and end is connected in parallel
Multiple hydraulic branch 34, the end of each hydraulic branch 34 connects the helical oscillating motor 30 of a horizontal disturbance plate 21.In liquid
Press dry and a filter 40, a hydraulic pump 39, an overflow valve 38, a check valve 37 and 3-position 4-way electricity are disposed with road 35
Magnetic reversal valve 36.
Embodiment two can be used for unidirectional internal wave simulation, and the rotation of the multiple helical oscillating cylinders of now arc shooting has phase
Potential difference, the startup of hydraulic pressure main line and bubble generator is there is also time relationship, for example, starting bubble when interior ripple crest is reached
Occur, or start bubble when interior ripple trough is reached.Therefore be provided with main line master control solenoid directional control valve, i.e., described in
One three-position four-way electromagnetic directional valve 36.In actual use, set each branch road phase and its start after the time difference, then
With a described three-position four-way electromagnetic directional valve 36 from main line overall control, it is ensured that when the interior ripple produced reaches submerged body model,
Its phase, which is met, to be required.
A three-position four-way electromagnetic directional valve 32, a bidirectional hydraulic lock 33 and one are disposed with each hydraulic branch 34
Balanced valve 31.In above-described embodiment, the helical oscillating motor 30 of horizontal disturbance plate 21 is built-in with mangneto rotary angle transmitter.
The present invention, which makes interior wave system system, also includes a programmable logic controller (PLC), each mangneto rotary angle transmitter and hydraulic control
Three-position four-way electromagnetic directional valve 36, each three-position four-way electromagnetic directional valve 32 in unit electrically connect programmable logic controller (PLC).
Embodiment 1, described experimental tank 1 is rectangle.
Accordingly, air pressure pipeline 8 and air pressure hose disk 11, gas are installed in one end bottom bottom of experimental tank 1 in the present embodiment
Pulsometer (not shown) source of the gas is delivered to fixed Bubble blowing tube 9 by pressure pipeline 8, and pulsometer source of the gas is delivered to by air hose disk 11 can
Bubble blowing tube 10 is adjusted, Bubble blowing tube 10 is can adjust using the fixed position of limiter 12.Be provided with inside air hose disk 11 wind spring and
The air hose that ratchet clamp (not shown) is pulled out can be positioned and withdrawn.Tank other end arrangement wave absorption net 14.
The position of the adjustable Bubble blowing tube 10 is adjusted in experimentation, makes it with fixing the spacing and submerged body of Bubble blowing tube 9
The length association of model 13, the response for studying ripple in 13 pairs of bubble protection dive body Model.Individually study bubble and interior ripple
During effect, regulation Bubble blowing tube 10 can be associated with the spacing of fixed Bubble blowing tube 9 with interior ripple wavelength, the phase interaction of research between the two
With.
Embodiment 2, the cross section of the experimental tank 1 or vertical orthographic projection are class semicircle.
In a semicircle pond (pond is not drawn into), the level of the driving of helical oscillating motor 23 is arranged along semi-circumference
Disturbance plate 21, horizontal disturbance plate 21 is connected to the rotation section of helical oscillating motor 23, helical oscillating motor through connecting frame 22
23 are installed on pool wall of pool by anchor support 24.Pond straight line is wave absorption area 20.The helical of each in experiment swings hydraulic pressure
Cylinder 23 can simulate the interior ripple from different directions with independent control.Suspend buoy model in pond, studies the interior of different directions
Ripple is acted on, including following experiment content：Study the interior ripple superimposed field of different directions, random irregular interior wave field, with directional spectrum
Interior wave field；Motor imagination of the snorkeling body in different directions under ripple effect；The internal wave field of snorkeling body with bubble function of getting angry
Adaptation.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. the experimental system that a kind of interior ripple interacts with bubble, it is characterised in that including experimental tank, be arranged in experimental tank
Disturb unit and bubble holding unit；
At least include the different medium of two layers of density inside described experimental tank；
Described disturbance unit includes disturbance board component, and the component includes a disturbance for being arranged on two medium interfaces and produced in simulation
Ripple；Meanwhile, bubble holding unit is opened, ripple and bubble interaction in simulation, the simulated bubble protection internal ripple of dive body Model
Response.
2. the experimental system that interior ripple according to claim 1 interacts with bubble, is further characterized in that：Described disturbance
Board component includes a horizontal disturbance plate I, and the horizontal disturbance plate I completes special angle by the drive shaft drive through the disturbance plate
Rotation/swing.
3. the experimental system that interior ripple according to claim 1 interacts with bubble, is further characterized in that：Described disturbance
Board component includes a vertical disturbance plate, and the vertical disturbance plate completes special by the drive shaft drive through vertical disturbance plate feather edge
Determine swing/rotation of angle.
4. the experimental system that interior ripple according to claim 1 interacts with bubble, is further characterized in that：Described experiment
Groove is rectangle.
5. the experimental system that interior ripple according to claim 4 interacts with bubble, is further characterized in that：Described bubble
Generating unit is fixed on one end of experimental tank, and the wave absorption area that wave absorption plate is constituted is provided with the other end of experimental tank.
6. the experimental system that interior ripple according to claim 5 interacts with bubble, is further characterized in that：Described bubble
Generating unit at least includes the fixation Bubble blowing tube being parallel to each other set along experimental tank width and moves Bubble blowing tube；
In experimentation, the spacing of the fixed Bubble blowing tube of regulation and mobile Bubble blowing tube associates from different interior ripple wavelength, studies bubble
With the interaction of interior ripple wavelength.
7. the experimental system that interior ripple according to claim 1 interacts with bubble, is further characterized in that：Described experiment
Groove is semicircle or approximate half-circular；
Curved wall arrangement of multiple disturbance board components along the experimental tank；
Wave absorption area described in the wave absorption plate composition of multiple base side walls along the experimental tank；
In experimentation, described multiple disturbance board components simultaneously or partially work, and simulate the interior ripple of different directions.
8. the experimental system that the interior ripple according to claim 1-7 any one interacts with bubble, is further characterized in that：
Described disturbance board component is by hydraulic control unit control；
Described hydraulic control unit includes：The hydraulic pressure main line being connected with total fuel tank and the liquid of connection terminal helical oscillating motor
Press branch road；
Described hydraulic pressure main line is disposed with filter, hydraulic pump, overflow valve, check valve and solenoid directional control valve；
Described hydraulic branch is disposed with solenoid directional control valve, bidirectional hydraulic lock and balanced valve.
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| CN201710370573.7A CN107219060B (en) | 2017-05-23 | 2017-05-23 | A kind of experimental system of interior wave and bubble interaction |
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| CN201710370573.7A CN107219060B (en) | 2017-05-23 | 2017-05-23 | A kind of experimental system of interior wave and bubble interaction |
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| CN107219060B CN107219060B (en) | 2019-04-16 |
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Cited By (6)
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| CN108168839A (en) * | 2018-01-05 | 2018-06-15 | 中国海洋大学 | It is a kind of to study the interior estimates experimental provision that upright pile influences on minor diameter |
| CN108254157A (en) * | 2018-02-06 | 2018-07-06 | 中国海洋大学 | A kind of interior wave and the experimental system of submerged body interaction |
| CN109436197A (en) * | 2018-10-31 | 2019-03-08 | 中国海洋大学 | Interior estimates act on coupled motions and the dynamometry experimental system for simulating of lower ocean floating structure |
| CN110118640A (en) * | 2019-05-14 | 2019-08-13 | 大连理工大学 | A kind of method that interior estimates feature in strong stratified fluid is extracted in laboratory |
| CN110803266A (en) * | 2019-11-14 | 2020-02-18 | 哈尔滨工程大学 | Method and device for measuring bow bubble sweep phenomenon |
| CN114216650A (en) * | 2021-12-17 | 2022-03-22 | 中国矿业大学 | Water tank device capable of controlling seepage rate and working method |
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Cited By (9)
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| CN108254157B (en) * | 2018-02-06 | 2019-09-03 | 中国海洋大学 | A kind of experimental system of interior wave and submerged body interaction |
| CN109436197A (en) * | 2018-10-31 | 2019-03-08 | 中国海洋大学 | Interior estimates act on coupled motions and the dynamometry experimental system for simulating of lower ocean floating structure |
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| CN110803266A (en) * | 2019-11-14 | 2020-02-18 | 哈尔滨工程大学 | Method and device for measuring bow bubble sweep phenomenon |
| CN114216650A (en) * | 2021-12-17 | 2022-03-22 | 中国矿业大学 | Water tank device capable of controlling seepage rate and working method |
| CN114216650B (en) * | 2021-12-17 | 2024-05-03 | 中国矿业大学 | Water tank device capable of controlling seepage rate and working method |
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