CN207231750U - Wave physical experiments wave simulator free of discontinuities under water level real-time change - Google Patents
Wave physical experiments wave simulator free of discontinuities under water level real-time change Download PDFInfo
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- CN207231750U CN207231750U CN201721144484.2U CN201721144484U CN207231750U CN 207231750 U CN207231750 U CN 207231750U CN 201721144484 U CN201721144484 U CN 201721144484U CN 207231750 U CN207231750 U CN 207231750U
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Abstract
The utility model discloses the wave physical experiments wave simulator free of discontinuities under a kind of water level real-time change,Including pilot system,Water level control system,Steady water system and monitoring system,Water level control system includes reservoir,Bidirectional reversible water pump and flow controller,Bidirectional reversible water pump is equipped between reservoir and experimental tank,Bidirectional reversible water pump is equipped with flow controller,The bathymetric data Signal Regulation bidirectional reversible pump capacity control parameter that flow controller is collected according to water level sensor,Steady water system includes steady pond,The bottom in steady pond is connected with the bottom of experimental tank using culvert pipe is connected,Monitoring system includes Wave Sensor and water level sensor,Wave Sensor is arranged in the front of wave maker,Water level sensor is arranged in steady pond,Make the true set output signal of bathymetric data signal that ripple signal controller is collected according to water level sensor.The utility model can manufacture the continuous communication process of wave under water level real-time change.
Description
Technical field
It the utility model is related to coastal engineering physical experiments technology, the ripple under more particularly to a kind of water level real-time change
Unrestrained physical experiments wave simulator free of discontinuities.
Background technology
In coastal engineering construction, effect of the wave to building has directly controlled the stability of structure, to structure safety
With significant impact, at the same wave it is strong lift effect under, sea bed silt will also rise outstanding, cause the erosion and deposition of sea bed landform
Change, also can be to causing sediment siltation in the waters such as navigation channel, basin.Therefore, how reasonably the propagation effect of simulated waves, be
Important evidence in emphasis problem in coastal engineering scientific research, and coastal engineering planning and design.
In natural marine, acted on by Between Celestial Tide-generating Forces, the cyclical movement of tidal level can be caused, be one continuous
The process of change.In addition, when meeting with storm tide (typhoon, cold wave when) terrible weather environment, in wind-force and the work of air pressure change
Under, sea level will produce and significantly surge and diminishing phenomenon, cause offshore water level significantly to stop up high or drop.Therefore, natural
In coastal environment, the effect of wave is superimposed on the change of water level.From physical essence, wave propagation and SEA LEVEL VARIATION
(including tide, storm tide increase and decrease water) is a process coupled in real time.
Currently in the test simulation technology of wave propagation, mathematical model test and physical experiments are main for two
School, it each has advantage and deficiency.Wave mathematical model experiment can be integrated at the same time by solving wave motion governing equation
Consider real-time coupling and the change procedure of a variety of key elements such as wind, water level, but be limited to the immature of theory, in nearshore waters ripple
There is certain deficiency in terms of the description of the nonlinear effect of wave；Wave physical experiments use actual water body, and simulated environment is more
Close to scene, without introducing theory hypothesis, the key physical machine such as Wave Shoaling, refraction, diffraction and reflection can be truly reduced
System, thus simulation precision in offshore pixel accuracy compared with mathematical model higher, important work has been played in coastal engineering scientific research
With.
However, in current wave physical experiments technology, it is only capable of using " static type " in the setting of experimental enviroment,
Set a fixed water level (such as extreme high water level, design high-water, mean water, design lowest stage, extreme low water level
Deng), and the wave propagation under the conditions of this water level is considered, and the real-time change for considering water level can not be superimposed, so that can not
The continuous communication process of wave being reflected under a typical tidal period or a storm tide increase and decrease water environment.In evaluation structure thing
In terms of the instantaneous stability of certain " under extreme condition ", still receive in this way.But in evaluation seabed erosion and siltation
In simulation, since sediment movement is related with tidal level, trend and wave at the same time, is particularly studying sediment siltation in navigation channel, preventing
In terms of ripple levee slope foot such as washes away at the object, the sediment movement under storm tide (typhoon or cold wave) process is often played control and is made
With, and the water level during storm tide changes constantly, and general luffing is larger, the value of surging in some sea areas can even surpass
Cross more than 2m (such as Laizhou Wan region).Under these conditions, the assumed condition of " static type " only is used then to water level and do not conformed to
Reason, is only capable of being subject to generalization and evaluates, such as a storm tide real process is generalized as to " wave continuous action 12 under a certain high water level
Hour ".Obviously, this generalization method differs greatly with physical condition, is the bottleneck problem in current wave physical simulation techniques.
Based on background above, currently urgently seek it is a kind of it is contemplated that the wave simulator free of discontinuities of water level real-time change with it is corresponding
Wave making method.In conventional wave physical model, it can not realize that the key issue for making ripple under the conditions of fluctuation of water table has two：(1)
In wave process is made, due to the vibration of wave, the water surface will be caused to occur ripple all the time, can not accurately measure background water level；(2) make
Ripple whistle control system is only capable of carrying out making ripple under the parametric environmental of setting, fails to realize and makes real-time change of the ripple signal with the depth of water
With amendment.
The content of the invention
The utility model provides the ripple under a kind of water level real-time change for technical problem present in solution known technology
Unrestrained physical experiments wave simulator free of discontinuities, the device can manufacture the continuous communication process of wave under water level real-time change.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：A kind of water level is real
Wave physical experiments wave simulator free of discontinuities under Shi Bianhua, including pilot system, the pilot system include experiment water
Pond, wave maker and ripple signal controller is made, the wave maker is controlled by the ripple signal controller of making and is installed on the experiment
In pond, which, which further includes water level control system, steady water system and monitoring system, the water level control system, includes water
Storehouse, bidirectional reversible water pump and flow controller, are equipped with the bidirectional reversible water pump between the reservoir and the experimental tank,
The bidirectional reversible water pump is equipped with the flow controller, the depth of water that the flow controller is collected according to water level sensor
Data-signal adjusts bidirectional reversible pump capacity control parameter, and the steady water system includes steady pond, the bottom in the steady pond
It is connected with the bottom of the experimental tank using connection culvert pipe, the monitoring system includes Wave Sensor and the level sensor
Device, the Wave Sensor are arranged in the front of the wave maker, and the water level sensor is arranged in the steady pond, described
Make the true set output signal of bathymetric data signal that ripple signal controller is collected according to the water level sensor.
It is equipped with the steady pond and connects the vertical dividing wall of culvert pipe with described, the water level sensor is arranged on described
The rear of dividing wall.
It is equipped with the inside of the tube wall of the connection culvert pipe and adds rough structure.
The utility model has the advantages and positive effects of：By establishing water level control system, steady water system and monitoring
System, coordinates a kind of wave making method of combined signal transmission, solves and be currently only capable of in wave physical simulation techniques for solid
Determine to carry out the drawbacks of making ripple under depth condition, while also solve since the vibration of wave Free Surface causes to be difficult to exact evaluation water
The problem of position information.The utility model has expanded the scope of application of wave physical simulation techniques, experimental enviroment is more suited day
The physical essence of right ocean, technical foundation is provided for coastal engineering scientific research.
Brief description of the drawings
Fig. 1 is the floor plan of the utility model wave simulator；
Fig. 2 is that the experiment depth of water that wave making method application example used in the utility model is obtained lasts the signal of process effect
Figure；
Fig. 3 is that the experiment wave height that wave making method application example used in the utility model is obtained lasts the signal of process effect
Figure.
In figure：Arrow represents water movement direction；1st, reservoir；2nd, experimental tank；3rd, bidirectional reversible water pump；4th, flow control
Device；5th, Wave Sensor signal picker；6th, wave-height sensing device；7th, breakwater；8th, cement side wall；9th, wave maker；10th, wave absorption fills
Put；11st, culvert pipe is connected；12nd, dividing wall；13rd, steady pond；14th, water level sensor；15th, ripple signal controller is made.
Embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Attached drawing describes in detail as follows：
Referring to Fig. 1, the wave physical experiments wave simulator free of discontinuities under a kind of water level real-time change, including experiment
System, the pilot system include experimental tank 2, wave maker 9 and make ripple signal controller 15, and the wave maker 9 is made by described
Ripple signal controller 15 controls and in the experimental tank 2, and wave absorber 10 is equipped with the experimental tank 2.Should
Wave simulator further includes water level control system, steady water system and monitoring system.
The water level control system includes reservoir 1, bidirectional reversible water pump 3 and flow controller 4, in the reservoir 1 and institute
State and be equipped with the bidirectional reversible water pump 3 between experimental tank 2, the bidirectional reversible water pump 3 is equipped with the flow controller 4, institute
State the flow control for the bathymetric data Signal Regulation bidirectional reversible water pump 3 that flow controller 4 is collected according to water level sensor 14
Parameter processed.
The steady water system includes steady pond 13, and the bottom and the bottom of the experimental tank 2 in the steady pond 13 use
Connection culvert pipe 11 connects.
The monitoring system includes Wave Sensor 6 and the water level sensor 14, and the Wave Sensor 6 is arranged in institute
The front of wave maker 9 is stated, the water level sensor 14 is arranged in the steady pond 13.
It is described make ripple signal controller 15 determined according to the bathymetric data signal that the water level sensor 14 collects it is defeated
Go out signal.
In the present embodiment, in order to make the water surface in steady pond more quiet steady, be equipped with the steady pond 13 with it is described
The vertical dividing wall 12 of culvert pipe 11 is connected, the water level sensor 14 is arranged on the rear of the dividing wall 12, can make its acquisition
Bathymetric data it is more accurate.It is equipped with the inside of the tube wall of the connection culvert pipe 11 and adds rough structure, is further enhancing wave and shake
Swing turbulent fluctuation of the current in connection culvert pipe 11 to dissipate, can also make the water surface in steady pond 13 more quiet steady.
The wave making method that above-mentioned wave simulator uses, comprises the following steps：
1) design wave physical model is required according to model test, and determine model it is horizontal than ruler, it is vertical than ruler and when
Between compare ruler；
2) according to field measurement or mathematical model test data, obtain before corresponding wave maker 9 at 6 position of wave-height sensing device
The prototype depth of water, wave height and wave period last process data, and it is pressed horizontal in step 1) than ruler, it is vertical than ruler and time ratio
Ruler is converted into the modelling depth of water, modelling wave height, modelling wave period and lasts process data；
3) in regular intervals, by the modelling depth of water in step 2), modelling wave height, modelling wave period
The duration for lasting process is split as N number of characteristic time, and T is respectively defined as by the sequencing of time of occurrencei(i=1~N),
And provide each characteristic time TiCorresponding modelling depth of water Di(i=1~N), modelling wave height Hi(i=1~N) and
Modelling wave period Pi(i=1~N)；
4) make experimental tank 2 and steady pond 13 keep Lentic environment, and open bidirectional reversible water pump 3, by injecting or taking out
The mode of water-outlet body so that the depth of water in experimental tank 2 and steady pond 13 changes, and flow controller 4 is according to level sensor
The flow control parameter for the bathymetric data Signal Regulation bidirectional reversible water pump 3 that device 14 collects, and finally so that experimental tank 2
The interior depth of water is in characteristic time Ti(i=1~N) is equal to modelling depth of water Di(i=1~N), records the process bidirectional reversible water pump 3
Flow control parameter, and determine that it is model water level and continuously change control parameter；
5) start bidirectional reversible water pump 3, flow controller 4 is continuously changed control using the model water level obtained in step 4)
The flow of state modulator bidirectional reversible water pump processed, first characteristic time T is reached when the time1When, start to start wave maker 9, and
By bathymetric data signal real-time Transmission that water level sensor 14 collects to making in ripple signal controller 15, work as water level sensor
When the 9 actual measurement depth of water reaches modelling depth of water scope, make ripple signal controller and transfer modelling wave height under corresponding depth
With modelling wave period, as making ripple wave height and making ripple wave period, ripple control program is made in input, makes wave maker 9 start to make ripple,
Until last characteristic time TNWhen, experiment finishes.
In step 5), bathymetric data signal that the water level sensor 9 collects interval transmission according to set time
To making in ripple signal controller, when bathymetric data signal, which reaches, makes ripple signal controller 15, the control of ripple signal is made when being transmitted to
The model corresponding to bathymetric data signal in device lasts moment T and is not equal to any feature moment TiWhen, then according to residing for moment T
The specific moment, wave height, wave period as corresponding to two characteristic times adjacent thereto obtain making ripple wave height with linear interpolation
And wave period.
The application example of above-mentioned wave making method-for the near Breakwater wave propagation token test under storm surge action
Wave making method, refers to Fig. 1, and what breakwater 7 was arranged in experimental tank 2 connects bank side, affixed with cement side wall 8, using signal
Collector 5 gathers the wave signal in experimental tank 2.The above method uses following steps：
1) design wave physical model is required according to model test, the physical model plane used in this example than ruler and
Vertical ratio is 10.0, time scale ratio 3.16.
The prototype data and model data that 1 application example of table is chosen
2) table 1 is referred to, based on storm tide mathematical model early period, wave mathematical model test data, extraction correspondence makes ripple
The prototype depth of water, wave height, wave period process before machine at 6 position of wave-height sensing device, time span are 9.0h altogether.And by data above
By the plane in step 1 than ruler 10, it is vertical than ruler 10 and time scale ratio 3.16 convert the modelling depth of water, modelling wave height,
Modelling wave period lasts process data；In the present embodiment, the model depth of water D after conversion changes between 0.4m~0.5m,
Wave height H changes between 0.05m~0.117m.In the present embodiment, wave period P keeps 1.90s constant.
3) depth of water in table 1, wave height are lasted into process and is split as 10 characteristic times altogether by the interval of 1h, by the elder generation of appearance
T is sequentially respectively defined as afterwardsi(i=1~10), and provide each TiModelling depth of water D corresponding to momenti(i=1~10),
Modelling wave height Hi(i=1~10), in the present embodiment, modelling wave period Pi(i=1~10) keep 1.90s not
Become.
4) make experimental tank 2 and steady pond 13 keep Lentic environment, and open bidirectional reversible water pump 3, by injecting or taking out
The mode of outflow so that the depth of water in experimental tank 2 and steady pond 13 changes, and is lowered in the monitoring of water level sensor 14
The flow parameter of bidirectional reversible water pump 3 is saved, and finally so that the depth of water is in characteristic time T in experimental tank 2i(i=1~N) is equal to
Modelling depth of water Di(i=1~N), records the flow control parameter of the process bidirectional reversible water pump 3, and determines that it is model
Water level continuously changes control parameter.
5) start bidirectional reversible water pump 3, flow controller 4 is continuously changed control using the model water level obtained in step 4)
The flow of state modulator bidirectional reversible water pump 3 processed, makes the water level in experimental tank 2 and steady pond 13 continuously change.According in table 1
Data, are tested from T1Moment originates, i.e., the depth of water reaches D1During=0.4m, wave maker 9 is opened, transfers wave height H1=0.05m and ripple week
Phase P1=1.90s, and the input of above parameter is made and starts to make ripple in ripple signal controller 15.During experiment, water level is passed
The bathymetric data signal that sensor 14 collects is transferred to by the fixed intervals of 1min to be made in ripple signal controller 15.It need to refer in particular to
Go out, last moment T not equal to any when being transmitted to the model corresponding to the bathymetric data signal made in ripple signal controller
Characteristic time TiWhen, the modelling wave height, modelling wave period as corresponding to two neighboring characteristic time are with linear interpolation
Method obtains making ripple wave height H and wave period P.For example, as being T=3.5h at the time of water level signal is transmitted to and makes wave controller 15
When, then the selection to wave height H then uses H4And H5Average value, i.e. H=0.076m, wave period P due to keeping in the present embodiment
1.90s is constant, then P=1.90s.Ripple is persistently made as above, until the moment reaches T10When, experiment finishes.
To illustrate effect that the utility model is finally realized, it is actual that the model that water level sensor 14 measures is given in Fig. 2
The contrast situation of depth of water process and design head process, gives the actual wave height process of model that wave-height sensing device 6 measures in Fig. 3
With the contrast situation of Design Wave process.By contrast, the utility model realizes the nothing under the continuous Changing Environment of water level well
Interruption makes ripple.
For the utility model outside conventional wave physical model experiment system, increase creates 3 subsystems, is respectively water
Level controlling system, steady water system and monitoring system.
Water level control system is generally used in tidal movement physical experiments, by setting bidirectional reversible water pump to coordinate
The method of exterior reservoir, controls the flow into and out of experimental tank, and then realizes the continuous variation of the depth of water in experimental tank.At this
It is introduced into utility model in wave physical experiments.
Steady water system is mainly used for solving in wave process is made, and due to the vibration of wave, the water surface will be caused to occur ripple all the time
Line, the problem of can not accurately measuring background water level, water will be tested by the connection culvert pipe influenced from the vibration of wave Free Surface
Pond is connected with the steady pond in an outside, and based on connection principle, the background water level in two ponds is that the moment is identical, so as to pass through
Water level sensor is set to monitor the water level in whole pilot system in steady pond.Connect and used on the inside of the tube wall of culvert pipe
Add rough processing, the weak oscillation for the nearly bottom current that further dissipate, while ddividing wall is set in steady pond, in limited scope
Increase flow path.Apparatus above ensure that water level is quiet steady in steady pond, and level measuring is from the wave oscillations shadow in experimental tank
Ring.
Monitoring system is mainly used for solving to make ripple whistle control system and be only capable of carrying out making ripple under the parametric environmental of setting, not
Can realize make ripple signal with the depth of water real-time change and amendment the problem of, after water level sensor collects water level information, by it
Signal, which is fed back to, to be made in ripple signal controller, is corrected to make in ripple signal controller in real time and is made wave parameter, has ensured and made ripple signal
With continuous, the uninterrupted change of water level.
The utility model is solved currently to be only capable of being directed in wave physical simulation techniques carrying out under fixed depth condition and made
The drawbacks of ripple, while also solve since wave Free Surface vibrates the problem for causing to be difficult to exact evaluation water level information.This reality
With the new scope of application for having expanded wave physical simulation techniques, experimental enviroment is set more to suit the physical essence of natural marine,
Technical foundation is provided for coastal engineering scientific research.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of scope, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (3)
1. the wave physical experiments wave simulator free of discontinuities under a kind of water level real-time change, including pilot system, the examination
Check system includes experimental tank, wave maker and makes ripple signal controller, and the wave maker is controlled by the ripple signal controller of making
And in the experimental tank, it is characterised in that the wave simulator further includes water level control system, steady water system and monitoring
System, the water level control system includes reservoir, bidirectional reversible water pump and flow controller, in the reservoir and the experiment water
The bidirectional reversible water pump is equipped between pond, the bidirectional reversible water pump is equipped with the flow controller, the flow controller
The bathymetric data Signal Regulation bidirectional reversible pump capacity control parameter collected according to water level sensor, the steady water system
Including steady pond, the bottom in the steady pond is connected with the bottom of the experimental tank using connection culvert pipe, the monitoring system
Including Wave Sensor and the water level sensor, the Wave Sensor is arranged in the front of the wave maker, the water level
Sensor arrangement is in the steady pond, the depth of water number made ripple signal controller and collected according to the water level sensor
It is believed that number true set output signal.
2. the wave physical experiments wave simulator free of discontinuities under water level real-time change according to claim 1, it is special
Sign is, is equipped with the steady pond and connects the vertical dividing wall of culvert pipe with described, the water level sensor is arranged on described
The rear of dividing wall.
3. the wave physical experiments wave simulator free of discontinuities under water level real-time change according to claim 1, it is special
Sign is, is equipped with the inside of the tube wall of the connection culvert pipe and adds rough structure.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421716A (en) * | 2017-09-07 | 2017-12-01 | 交通运输部天津水运工程科学研究所 | Wave physical experiments wave simulator free of discontinuities and method under SEA LEVEL VARIATION |
| CN109253857A (en) * | 2018-10-12 | 2019-01-22 | 山东科技大学 | The experimental provision of mine operation is raised in a kind of simulation deep-sea mining |
-
2017
- 2017-09-07 CN CN201721144484.2U patent/CN207231750U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421716A (en) * | 2017-09-07 | 2017-12-01 | 交通运输部天津水运工程科学研究所 | Wave physical experiments wave simulator free of discontinuities and method under SEA LEVEL VARIATION |
| CN107421716B (en) * | 2017-09-07 | 2023-05-23 | 交通运输部天津水运工程科学研究所 | Uninterrupted wave generation device and method for wave physical model test under water level change |
| CN109253857A (en) * | 2018-10-12 | 2019-01-22 | 山东科技大学 | The experimental provision of mine operation is raised in a kind of simulation deep-sea mining |
| WO2020073498A1 (en) * | 2018-10-12 | 2020-04-16 | 山东科技大学 | Experimental device for simulating mine lifting operation in deep-sea mining |
| US11119002B2 (en) | 2018-10-12 | 2021-09-14 | Shandong University Of Science And Technology | Experimental apparatus for simulating lifting operation of deep-sea mining |
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