CN109994021A - A kind of stratified flow physical simulation experiment tank system for capableing of simulation background flow velocity - Google Patents
A kind of stratified flow physical simulation experiment tank system for capableing of simulation background flow velocity Download PDFInfo
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- CN109994021A CN109994021A CN201910177361.6A CN201910177361A CN109994021A CN 109994021 A CN109994021 A CN 109994021A CN 201910177361 A CN201910177361 A CN 201910177361A CN 109994021 A CN109994021 A CN 109994021A
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Abstract
A kind of stratified flow physical simulation experiment tank system for capableing of simulation background flow velocity, head end is provided with upper layer inlet well, lower layer's inlet well in layering sink, positioned at the head end current stabilization wave absorber of upper layer inlet well and lower layer's inlet well water outlet side, upper layer inlet well connects one end of head end horizontal splitter plate with lower layer inlet well.Tail end in layering sink is provided with upper layer wet well, lower layer's wet well, and positioned at the tail end current stabilization wave absorber of upper layer wet well and lower layer's wet well influent side, upper layer wet well connects one end of tail end horizontal splitter plate with lower layer wet well.Upper layer inlet well is connected by top fluid circulating pipe system with upper layer wet well, and lower layer's inlet well is connected by lower layer's fluid circulation pipe-line system with lower layer wet well.The present invention can be used for lake and reservoir thermal stratification, ocean density stratification, the physical simulation experiments such as wave research in LAYER FLUID interface, provides multifunction test platform for the physical analogy of stratified flow, preferably meets the Research Requirements of stratified flow.
Description
Technical field
The present invention relates to a kind of stratified flow physical simulation experiment tank systems.It being capable of simulation background stream more particularly to one kind
The stratified flow physical simulation experiment tank system of speed.
Background technique
Fluid layering is a kind of common natural phenomena, occurs mainly in the areas such as ocean, lake, reservoir and river mouth, main
It to be formed because the differences such as the temperature of different depth water body, solubility content, sediment content cause water body density variation.Stratified flow
Great influence is all had for hydraulic engineering construction, ecological environmental protection, national product life etc..Thermal stratification can inhibit
Water body mass exchange, causes water environment degradation；Water quality at the water sources such as lake, reservoir can directly affect industrial and agricultural production and resident
Life；Reservoir thermal stratification causes lower sluicing temperature abnormality to will affect the survival and reproduction of downstream fish；Water can be improved using density current
Library siltation situation and downstream river course wash away balance；Seawater, which traces back, at river mouth to form salt wedge and will affect two sides urban water；Ocean
Thermohaline layering be marine physics environment one of important factor in order.Therefore, carry out stratified fluid research for engineering construction,
Ecological environment, production and living etc. all have important value.
Physical simulating method is the important means for studying stratified flow, and there are many different types of test water both at home and abroad at present
Slot is for being layered flow field simulation.For example, Xi'an University of Architecture and Technology, China utilizes thermal stratification experimental tank simulation lake and reservoir temperature point
Layer；Shanghai Communications University is layered tank system simulated seawater density stratification environment using gravity type；Chinese Marine University utilizes close
Degree layering sink expands a large amount of analog study to stratified flow；Johns Hopkins University utilizes density stratification sink pair
Wave is simulated in stratified fluid.However, often there is the limitation having a single function in existing stratified flow experimental tank system,
It cannot achieve while simulating stratified fluid and make stream function.In actual conditions, fluid layering phenomenon is frequently found in certain speed
It spends in field, for example, the density stratification of seawater coexists with tide, the stratified flow of formation all has one at the passage of density current, river mouth
Constant current speed, stratified fluid interface fluctuation also tend to be wave and the result for flowing interaction.Therefore, in order to be more accurately layered
A kind of stratified flow physical analogy that can simulate fluid layering and background flow velocity simultaneously is badly in need of in the physical simulation experiment of fluid and research
Tank system.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of while simulating stratified fluid realizes and makes stream function
It is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity.
The technical scheme adopted by the invention is that: one kind capableing of the stratified flow physical simulation experiment sink of simulation background flow velocity
System, including layering sink, which is characterized in that the head end in the layering sink is provided with upper layer inlet well, lower layer's inlet well,
And the head end current stabilization wave absorber positioned at upper layer inlet well and lower layer's inlet well water outlet side, the upper layer inlet well and lower layer
Inlet well connects one end of head end horizontal splitter plate, and the water outlet of upper layer inlet well is formed by the head end horizontal splitter plate
The other end level of the exhalant canal in channel and lower layer's inlet well, the head end horizontal splitter plate runs through head end current stabilization wave absorber
Middle part be located at the water outlet side of the head end current stabilization wave absorber, the tail end in the layering sink be provided with upper layer wet well,
Lower layer's wet well, and positioned at the tail end current stabilization wave absorber of upper layer wet well and lower layer's wet well influent side, the upper layer
Wet well connects one end of tail end horizontal splitter plate with lower layer's wet well, and forms upper layer by the tail end horizontal splitter plate
The other end of the intake tunnel of wet well and the intake tunnel of lower layer's wet well, the tail end horizontal splitter plate runs through tail end current stabilization
Wave absorber is located at the water inlet side of the tail end current stabilization wave absorber, and the upper layer inlet well passes through top fluid circulation line system
System is connected with the upper layer wet well, and lower layer's inlet well passes through lower layer's fluid circulation pipe-line system and lower layer's wet well phase
Connection.
Divided between the upper layer inlet well and lower layer's inlet well by head end longitudinal divider, also, upper layer intakes
Well forms independent well structure by being located at the head end top fluid transverse partition panel of lower part, and lower layer's inlet well passes through
Superposed head end lower layer fluid transverse partition panel forms independent well structure, wherein the head end top fluid is lateral
The top connection of the demarcation plate head end horizontal splitter plate, forms upper water-out channel, head end lower layer fluid is laterally separated
The bottom end connection of the plate head end horizontal splitter plate forms lower exhalant canal, is provided with connection in the upper layer inlet well
The top fluid water inlet of the water outlet port of top fluid circulating pipe system is provided under connection in lower layer's inlet well
Lower layer's fluid water inlet of the water outlet port of layer fluid circulating pipe system.
The top fluid water inlet and lower layer's fluid water inlet is porous energy-dissipating structure.
Divided between the upper layer wet well and lower layer's wet well by tail end longitudinal divider, also, upper layer is discharged
Well forms independent well structure by being located at the tail end top fluid transverse partition panel of lower part, and lower layer's wet well passes through
Superposed tail end lower layer fluid transverse partition panel forms independent well structure, wherein the tail end top fluid is lateral
The top connection of the demarcation plate tail end horizontal splitter plate, intake tunnel in formation, tail end lower layer fluid are laterally separated
The bottom end connection of the plate tail end horizontal splitter plate forms lower intake tunnel, is provided with connection in the upper layer wet well
The top fluid water outlet of the water inlet port of top fluid circulating pipe system, is provided under connection in lower layer's wet well
Lower layer's fluid water outlet of the water inlet port of layer fluid circulating pipe system.
The top fluid water outlet and lower layer's fluid water outlet is porous energy-dissipating structure.
The top fluid circulating pipe system is identical with lower layer's fluid circulation pipe-line system structure, in the pipe of tail end-side
Road is disposed with by influent side: tail end service valve, tail end graduating valve and pipeline pump, on the pipeline of first end-side
It is disposed with by influent side: flow control valve, flowmeter, head end graduating valve and head end service valve, wherein the pipeline
Return valve is connected in parallel on pump.
The head end current stabilization wave absorber is identical with tail end current stabilization wave absorber structure, include steady flow pipe array,
Positioned at the water inlet sponge layer of the steady flow pipe array influent side and positioned at the water outlet sponge layer of the steady flow pipe array water outlet side.
One kind of the invention is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity, and can prepare has not
The ibid temperature or salinity stratification fluid of lower layer's fluid depth of water ratio, layer fluid has the uniform of identical mean flow rate to analog up and down
Background flow velocity, upper and lower layer fluid have shearing background flow velocity different in flow rate, realize while simulating stratified fluid and make stream function
Can, the stratified flow uniformly or shear with background flow velocity is simulated, can be used for lake and reservoir thermal stratification, ocean density stratification, two laminar flows
The physical simulation experiments such as wave are studied in body interface, are provided multifunction test platform for the physical analogy of stratified flow, are preferably met
The Research Requirements of stratified flow.
Detailed description of the invention
Fig. 1 is the overall structure for the stratified flow physical simulation experiment tank system that one kind of the present invention is capable of simulation background flow velocity
Schematic diagram；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the bottom view of Fig. 1；
Fig. 5 is the A-A sectional view of Fig. 2；
Fig. 6 is the B-B sectional view of Fig. 3；
Fig. 7 is stratified fluid realistic picture prepared by embodiment；
Fig. 8 is stratified fluid density profile figure prepared by embodiment.
In figure
1: layering sink 2: upper layer inlet well
3: lower layer's inlet well 4: head end current stabilization wave absorber
4.1: steady flow pipe array 4.2: water inlet sponge layer
4.3: water outlet sponge layer 5: upper layer wet well
6: lower layer's wet well 7: tail end current stabilization wave absorber
7.1 steady flow pipe arrays 7.2: water inlet sponge layer
7.3: water outlet sponge layer 8: top fluid circulating pipe system
8.1: tail end service valve 8.2: tail end graduating valve
8.3: pipeline pump 8.4: return valve
8.5: flow control valve 8.6: flowmeter
8.7: head end graduating valve 8.8: head end service valve
9: lower layer's fluid circulation pipe-line system 9.1: tail end service valve
9.2: tail end graduating valve 9.3: pipeline pump
9.4: return valve 9.5: flow control valve
9.6: flowmeter 9.7: head end graduating valve
9.8: head end service valve 10: head end horizontal splitter plate
11: tail end horizontal splitter plate 12: head end longitudinal divider
13: head end top fluid transverse partition panel 14: head end lower layer fluid transverse partition panel
15: top fluid water inlet 16: lower layer's fluid water inlet
17: tail end longitudinal divider 18: tail end top fluid transverse partition panel
19: tail end lower layer fluid transverse partition panel 20: top fluid water outlet
21: lower layer's fluid water outlet
Specific embodiment
It is tried below with reference to the stratified flow physical analogy that embodiment and attached drawing are capable of simulation background flow velocity to one kind of the invention
Tank system is tested to be described in detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, one kind of the invention is capable of the stratified flow physics mould of simulation background flow velocity
Quasi- experimental tank system, including layering sink 1, the layering sink 1 use steel structure frame, and layering sink wall surface is tempering glass
Glass, layering bottom of gullet are PVC board, and cycle cooling plating drum is installed on layering bottom of gullet.Head end in the layering sink 1 is set
It is equipped with upper layer inlet well 2, lower layer's inlet well 3, and the head end current stabilization positioned at 3 water outlet side of upper layer inlet well 2 and lower layer's inlet well
Wave absorber 4, the upper layer inlet well 2 and lower layer's inlet well 3 connect one end of head end horizontal splitter plate 10, and by described
Head end horizontal splitter plate 10 formed upper layer inlet well 2 exhalant canal and lower layer's inlet well 3 exhalant canal, the head end water
The other end level for dividing partition 10 equally runs through the middle part of head end current stabilization wave absorber 4, positioned at the head end current stabilization wave absorber 4
Water outlet side, the tail end being layered in sink 1 is provided with upper layer wet well 5, lower layer's wet well 6, and is located at upper layer wet well 5
With the tail end current stabilization wave absorber 7 of 6 influent side of lower layer wet well, the upper layer wet well 5 and lower layer's wet well 6 connect tail end
One end of horizontal splitter plate 11, and the intake tunnel of upper layer wet well 5 is formed under by the tail end horizontal splitter plate 11
The intake tunnel of layer wet well 6, the other end of the tail end horizontal splitter plate 11 run through the middle part of tail end current stabilization wave absorber 7,
Positioned at the water inlet side of the tail end current stabilization wave absorber 7, the upper layer inlet well 2 by top fluid circulating pipe system 8 with
The upper layer wet well 5 is connected, and lower layer's inlet well 3 passes through lower layer's fluid circulation pipe-line system 9 and 6 phase of lower layer wet well
Connection.
As shown in Fig. 2, Fig. 3, Fig. 5, Fig. 6, pass through head end longitudinal direction between the upper layer inlet well 2 and lower layer's inlet well 3
Demarcation plate 12 is divided, also, upper layer inlet well 2 forms independence by being located at the head end top fluid transverse partition panel 13 of lower part
Well structure, lower layer's inlet well 3 forms independent water by superposed head end lower layer fluid transverse partition panel 14
Well construction, wherein the top connection of the head end top fluid transverse partition panel 13 head end horizontal splitter plate 10 is formed
Upper water-out channel, the bottom end connection of the head end lower layer fluid transverse partition panel 14 head end horizontal splitter plate 10, forms
Lower exhalant canal is provided with the upper layer of the water outlet port of connection top fluid circulating pipe system 8 in the upper layer inlet well 2
Fluid water inlet 15 is provided in lower layer's inlet well 3 under the water outlet port of connection lower layer's fluid circulation pipe-line system 9
Layer fluid water inlet 16.The top fluid water inlet 15 and lower layer's fluid water inlet 16 are porous energy-dissipating structure.It can be effectively
Reduce water inlet fluid dynamic energy, dispersing fluid flow velocity；After fluid flows into inlet well by water inlet, top fluid is led by inlet well
Enter sink upper layer, lower layer's fluid imports sink lower layer by inlet well；
As shown in Fig. 2, Fig. 3, Fig. 5, Fig. 6, pass through tail end longitudinal direction between the upper layer wet well 5 and lower layer's wet well 6
Demarcation plate 17 is divided, also, upper layer wet well 5 forms independence by being located at the tail end top fluid transverse partition panel 18 of lower part
Well structure, lower layer's wet well 6 forms independent water by superposed tail end lower layer fluid transverse partition panel 19
Well construction, wherein the top connection of the tail end top fluid transverse partition panel 18 tail end horizontal splitter plate 11 is formed
Upper intake tunnel, the bottom end connection of the tail end lower layer fluid transverse partition panel 19 tail end horizontal splitter plate 11, forms
Lower intake tunnel is provided with the upper layer of the water inlet port of connection top fluid circulating pipe system 8 in the upper layer wet well 5
Fluid water outlet 20 is provided in lower layer's wet well 6 under the water inlet port of connection lower layer's fluid circulation pipe-line system 9
Layer fluid water outlet 21.The top fluid water outlet 20 and lower layer's fluid water outlet 21 are porous energy-dissipating structure, to disperse to flow
Body flow velocity.
As shown in figure 4, the top fluid circulating pipe system 8 is identical with lower layer's 9 structures of fluid circulation pipe-line system,
It is disposed with by influent side on the pipeline of tail end-side: tail end service valve 8.1/9.1, tail end graduating valve 8.2/9.2
It with pipeline pump 8.3/9.3, is disposed with by influent side on the pipeline of first end-side: flow control valve 8.5/9.5, stream
Meter 8.6/9.6, head end graduating valve 8.7/9.7 and head end service valve 8.8/9.8, wherein in parallel on the pipeline pump 8.3/9.3
It is connected with return valve 8.4/9.4.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, the head end current stabilization wave absorber 4 and tail end current stabilization wave absorber 7
Structure is identical, includes steady flow pipe array 4.1/7.1, positioned at the water inlet sponge of the steady flow pipe array 4.1/7.1 influent side
Layer 4.2/7.2 and water outlet cotton layer 4.3/7.3 positioned at the steady flow pipe array 4.1/7.1 water outlet side.
It is as follows that specific embodiment is given below:
Layering the sink 1 longitudinal length 10m, width 0.5m, height 1m that the present embodiment uses；Head end horizontal splitter plate 10,
The longitudinal length of tail end horizontal splitter plate 11 is 1.2m, mounting height 0.5m, and head end current stabilization wave absorber 4 and tail end current stabilization disappear
The longitudinal length of wave apparatus 7 is 0.6m；Pipeline pump 8.3,9.3 uses centrifugal pump, metered flow 40m3/h；Top fluid circulation pipe
Valve is ball valve in road system 8 and lower layer's fluid circulation pipe-line system 9；Flowmeter 8.6,9.6 is electromagnetic flowmeter；Utilize salt
It spends difference and prepares density stratification water body, upper water column is tap water, actual density 998kg/m3, depth of water 0.3m, lower water column is close
Spend 1004kg/m3, depth of water 0.5m.
When preparing stratified fluid, lower layer's high density water body is first prepared.Close flow control valve 9.5, tail end service valve 9.1,
Tail end graduating valve 9.2, the external upper hose of head end graduating valve 9.7, water body enter sink lower layer by lower layer's inlet well 3；Work as lower water
Head end graduating valve 9.7 is closed when body fluid face is flushed with head end horizontal splitter plate 10 and tail end horizontal splitter plate 11；To lower water column
The middle appropriate Nacl of addition makes its density reach 1004kg/m3, and put into appropriate red color developing agent to distinguish upper and lower layer water body,
Pipeline pump 9.3 is opened, salinity and coloring agent in water body is spread uniformly using flowing, is then turned off pipeline pump 9.3, completes lower layer
The preparation of water body；When preparing upper layer low-density water body, flow control valve 8.5, the external upper hose of head end graduating valve 8.7, water are closed
Body, which enters sink upper layer by upper layer inlet well 2, should make entering for upper water column to avoid upper and lower two layers of water body interface from excessively blending
Flow is sufficiently small；To keep upper and lower two layers of water body interface apparent, tail end graduating valve 8.2 is opened, makes section top fluid through upper layer
Sink is discharged in wet well 5, forms shear flow between upper and lower LAYER FLUID interface, should control the outflow of upper water column at this time
Less than inbound traffics；Head end graduating valve 8.7 and tail end graduating valve 8.2 are closed when upper water column depth reaches 0.3m, complete stratified flow
The preparation of body.Stratified fluid prepared by the present embodiment and density profile are shown in Fig. 7, Fig. 8 respectively.A is free surface in Fig. 7, and b is
Upper layer low-density water body, c are lower layer's high density water bodys.
Background flow velocity is arranged according to specific operating condition of test, according to Flow modulation independent control top fluid circulation line
The flow of system 8 and lower layer's fluid circulation pipe-line system 9；When top fluid circulating pipe system 8 and lower layer's fluid circulating line
When 9 flow of system is zero, the background flow velocity of stratified flow is zero；It adjusts top fluid circulating pipe system 8 and lower layer's fluid follows
When 9 flow of ring pipe-line system keeps upper and lower two layers of water body mean velocity in section identical, homogeneous background flow velocity can be formed；When upper and lower two
When layer fluid mean velocity in section difference, the stratified flow with different shearing flow velocitys can be formed.It should be noted that avoid flow
Adjustment process causes excessive disturbance to stratified fluid, and adjusting flow operation should steadily slowly, and can not increase sharply circulation line of die-offing
The flow of system.
Claims (7)
1. one kind is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity, including layering sink (1), feature
Be, the head end in layering sink (1) is provided with upper layer inlet well (2), lower layer's inlet well (3), and be located at upper layer into
The head end current stabilization wave absorber (4) of well (2) and lower layer's inlet well (3) water outlet side, the upper layer inlet well (2) and lower layer into
Well (3) connects the one end of head end horizontal splitter plate (10), and by the head end horizontal splitter plate (10) formed upper layer into
The other end of the exhalant canal of well (2) and the exhalant canal of lower layer's inlet well (3), the head end horizontal splitter plate (10) is horizontal
It is located at the water outlet side of the head end current stabilization wave absorber (4), the layering sink through the middle part of head end current stabilization wave absorber (4)
(1) tail end in is provided with upper layer wet well (5), lower layer's wet well (6), and is located at upper layer wet well (5) and lower layer's water outlet
The tail end current stabilization wave absorber (7) of well (6) influent side, the upper layer wet well (5) and lower layer's wet well (6) connect tail end water
Divide one end of partition (11) equally, and forms the intake tunnel of upper layer wet well (5) by the tail end horizontal splitter plate (11)
Run through tail end current stabilization wave absorber with the other end of the intake tunnel of lower layer's wet well (6), the tail end horizontal splitter plate (11)
(7) it is located at the water inlet side of the tail end current stabilization wave absorber (7), the upper layer inlet well (2) passes through top fluid circulation line
System (8) is connected with the upper layer wet well (5), and lower layer's inlet well (3) passes through lower layer's fluid circulation pipe-line system (9)
It is connected with lower layer's wet well (6).
2. one kind according to claim 1 is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity,
It is characterized in that, is divided between the upper layer inlet well (2) and lower layer's inlet well (3) by head end longitudinal divider (12), and
And upper layer inlet well (2) forms independent well structure by being located at the head end top fluid transverse partition panel (13) of lower part,
Lower layer's inlet well (3) forms independent well structure by superposed head end lower layer fluid transverse partition panel (14),
Wherein, the top connection of the head end top fluid transverse partition panel (13) the head end horizontal splitter plate (10), in formation
Exhalant canal, the bottom end connection of the head end lower layer fluid transverse partition panel (14) the head end horizontal splitter plate (10), shape
At lower exhalant canal, the water outlet port of connection top fluid circulating pipe system (8) is provided in the upper layer inlet well (2)
Top fluid water inlet (15), connection lower layer's fluid circulation pipe-line system (9) is provided in lower layer's inlet well (3)
Lower layer's fluid water inlet (16) of water outlet port.
3. it is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity according to one kind that claim 2 is stated, it is special
Sign is that the top fluid water inlet (15) and lower layer's fluid water inlet (16) are porous energy-dissipating structure.
4. one kind according to claim 1 is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity,
It is characterized in that, is divided between the upper layer wet well (5) and lower layer's wet well (6) by tail end longitudinal divider (17), and
And upper layer wet well (5) forms independent well structure by being located at the tail end top fluid transverse partition panel (18) of lower part,
Lower layer's wet well (6) forms independent well structure by superposed tail end lower layer fluid transverse partition panel (19),
Wherein, the top connection of the tail end top fluid transverse partition panel (18) the tail end horizontal splitter plate (11), in formation
Intake tunnel, the bottom end connection of the tail end lower layer fluid transverse partition panel (19) the tail end horizontal splitter plate (11), shape
At lower intake tunnel, the water inlet port of connection top fluid circulating pipe system (8) is provided in the upper layer wet well (5)
Top fluid water outlet (20), connection lower layer's fluid circulation pipe-line system (9) is provided in lower layer's wet well (6)
Lower layer's fluid water outlet (21) of water inlet port.
5. one kind according to claim 4 is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity,
It is characterized in that, the top fluid water outlet (20) and lower layer's fluid water outlet (21) are porous energy-dissipating structure.
6. one kind according to claim 1 is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity,
It is characterized in that, the top fluid circulating pipe system (8) is identical with lower layer's fluid circulation pipe-line system (9) structure, in tail
It is disposed with by influent side on the pipeline of end side: tail end service valve (8.1/9.1), tail end graduating valve (8.2/9.2)
It with pipeline pump (8.3/9.3), is disposed with by influent side on the pipeline of first end-side: flow control valve (8.5/
9.5), flowmeter (8.6/9.6), head end graduating valve (8.7/9.7) and head end service valve (8.8/9.8), wherein the pipeline pump
Return valve (8.4/9.4) is connected in parallel on (8.3/9.3).
7. one kind according to claim 1 is capable of the stratified flow physical simulation experiment tank system of simulation background flow velocity,
It is characterized in that, it includes current stabilization that the head end current stabilization wave absorber (4) is identical with tail end current stabilization wave absorber (7) structure
Pipe array (4.1/7.1), be located at steady flow pipe array (4.1/7.1) influent side water inlet sponge layer (4.2/7.2) and be located at
The water outlet sponge layer (4.3/7.3) of steady flow pipe array (4.1/7.1) water outlet side.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397841A (en) * | 2020-03-21 | 2020-07-10 | 中山大学 | Device and method capable of realizing multilayer stable and controllable layered fluid |
| CN111312038A (en) * | 2020-03-25 | 2020-06-19 | 河海大学 | Water tank water inlet multi-water-pipe energy dissipation and flow stabilization system and operation method |
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| CN109994021B (en) | 2021-02-12 |
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