CN109974970A - A kind of pulsed for scouring experiment floods impact jet flow experimental provision and its measurement method - Google Patents
A kind of pulsed for scouring experiment floods impact jet flow experimental provision and its measurement method Download PDFInfo
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- CN109974970A CN109974970A CN201910338766.3A CN201910338766A CN109974970A CN 109974970 A CN109974970 A CN 109974970A CN 201910338766 A CN201910338766 A CN 201910338766A CN 109974970 A CN109974970 A CN 109974970A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 28
- 238000009991 scouring Methods 0.000 title claims abstract description 24
- 238000006424 Flood reaction Methods 0.000 title claims description 17
- 238000000691 measurement method Methods 0.000 title abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 128
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 72
- 229910052802 copper Inorganic materials 0.000 claims abstract description 72
- 239000010949 copper Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013277 forecasting method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measuring Volume Flow (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of pulseds for scouring experiment to flood impact jet flow experimental provision and its measurement method, circular copper pipe and the detachable fixation of angle scale, and sand bed is put among two block baffles；Water in reservoir sequentially passes through magnetic drive pump, flowmeter, gate valve, impulse generator, hose, circular copper pipe, and projects from circular copper pipe, impacts in sand bed；First camera, laser infrared line rangefinder are installed on above sink, and first camera is used to shoot the face profile on sand pit and sand dune, and laser infrared line rangefinder is used for sand pit and sand dune in the range measurement of vertical direction；Second camera is placed in sink side, impacts the formation on sand dune and motion process in entire scour process in sand bed from projecting in circular copper pipe for shooting jet stream.The configuration of the present invention is simple, design rationally, can comprehensively study the affecting laws that Reynolds number, angle of attack, impact distance and pulse period flood impact jet flow performance of flushing to pulsed.
Description
Technical field
The present invention relates to a kind of pulseds for scouring experiment to flood impact jet flow experimental provision and its measurement method, main
It is used to measure the performance of flushing that pulsed floods impact jet flow.
Background technique
The problem of washing away of impact jet flow has been related to extensive engineering background.It is high in water conservancy and hydropower outlet work
The aerial overflow punching that the outlet that the aperture water flow of head arch dam falls into the discharge structures such as cushion pool, flood discharging tunnel or spillway is chosen
Hitting downstream river course is exactly typical impact jet flow phenomenon, and the high-velocity flow for possessing huge energy directly crashes into underwater bed, if
Riverbed is not protected, is bound to cause more serious erosion damage.In addition, side in waterway dredging project throw spoil disposal,
Forced erosion, the greasy filth dredging that industrial oil tank fills bottom is that problem is washed away in typical impact jet flow.
It is paid close attention to due to the problem of washing away of impact jet flow, thus by people.Currently, traditional impact jet flow scouring experiment platform
Have the following characteristics that impact jet flow can be divided into perpendicular according to the difference of angle of attack (angle of jet axis and impact wall surface)
Straight impact jet flow and oblique impact jet flow, it is most of to impact since the experimental provision of vertical impact jet flow and flowing are relatively easy
Jet erosion experimental bench is directed to vertical impact jet flow；The oblique impact jet flow scouring experiment platform of small part, angle of attack are fixed
It is constant, the impact jet flow scouring experiment of different angle of attack can not be carried out；Past impact jet flow scouring experiment only measures scour hole
Depth, not no important parameters such as the shape of scour hole and area.The Master's thesis of Qin Yan " chooses stream punching hole based on impact pressure
Master's thesis " self-excitation air-breathing pulse liquid-gas jet erosion effect disquisition (2014) institute of Study on Forecasting Method " (2007), Song Zhe
The submerged impact jet flow scouring experiment of progress has above-mentioned 2,3 features.
Through retrieving, there is presently no the patents that impact jet flow scouring experiment is flooded about pulsed.
Summary of the invention
In order to study the performance of flushing that pulsed floods impact jet flow, the present invention provides a kind of arteries and veins for scouring experiment
The formula of punching floods impact jet flow experimental provision and its measurement method, which can comprehensively study Reynolds number, angle of attack, impact
Distance and pulse period flood the affecting laws of impact jet flow performance of flushing to pulsed.
The object of the present invention is achieved like this, and a kind of pulsed for scouring experiment floods impact jet flow experiment dress
It sets, it is characterized in that: including angle scale, circular copper pipe, sand bed, reservoir, magnetic drive pump, flowmeter, gate valve, impulse generator, water
Slot, hose, baffle, first camera, laser infrared line rangefinder, second camera；
The angle scale is fixed on support frame；The circular copper pipe and the detachable fixation of angle scale, and circular copper pipe is at angle
Scale upper angle is adjustable；
The bottom of gullet interval is placed with two block baffles, and sand bed is put among two block baffles；
Reservoir is successively penetrated through through magnetic drive pump, flowmeter, gate valve, impulse generator, hose and circular copper pipe and is connected, round
Copper pipe one end and hose penetrate through, and the other end is placed in above the sand bed in sink；Water in reservoir sequentially pass through magnetic drive pump,
Flowmeter, gate valve, impulse generator, hose, circular copper pipe, and projected from circular copper pipe, it impacts in sand bed；
Jet stream is projected from circular copper pipe, is impacted in sand bed, and the sand pit for being similar to ellipse, and the sand in sand pit are formed
Son is washed to downstream and forms sand dune；
The first camera, laser infrared line rangefinder are installed on above sink, and first camera is used to shoot sand pit and sand dune
Face profile, laser infrared line rangefinder in the range measurement of vertical direction, that is, are used to measure sand pit for sand pit and sand dune
Depth and the height on sand dune；The second camera is placed in sink side, and punching is projected from circular copper pipe for shooting jet stream
Hit the formation on sand dune and motion process in the entire scour process in sand bed.
The sand bed is what natural sand was formed.
The sink is tempered glass sink, and sink is rectangular.
The sink is set to the top of reservoir, and the side wall upper part of sink is equipped with gap, and gap is equipped with lower lock
Door, gap are located at the top of reservoir.
The shape of the angle scale is 1/4 round, the angle scale be equipped with centre bore, 7 it is lateral opening, centre bore is set to
The right angle of angle scale, 7 lateral opening to be set at the arc-shaped side of angle scale, and centre bore and 7 lateral opening lines form 7 mutually
Between 15 degree of the line segment in interval；
2 apertures are added in the centre bore and each lateral opening two sides, 2 apertures of centre bore two sides and lateral opening two sides
2 mountable fixing pieces of aperture, circular copper pipe is close to by fixing piece to be fixed on angle scale, is fixed on by circular copper pipe
It is different it is lateral opening on, the angle of adjustment circular copper pipe is realized, so as to adjust the angle of attack of impact jet flow.
The circular copper pipe is stretchable formula circular copper pipe.
The impulse generator is used to form the pulsing jet of different frequency.
The angle scale can move up and down on the support frame.
A method of the pulsed for scouring experiment is flooded impact jet flow experimental provision and is measured, it is characterized in that:
First circular copper pipe is adjusted into angle on angle scale, and is fixed on angle scale；Circular copper pipe is placed in above sand bed；
Start magnetic drive pump, the water in reservoir sequentially passes through magnetic drive pump, flowmeter, gate valve, impulse generator, hose, round copper
Pipe, and projected from circular copper pipe, it impacts in sand bed, forms the sand pit for being similar to ellipse, and the sand quilt in sand pit
It washes away to downstream and forms sand dune；The face profile that sand pit and sand dune are shot with first camera, with laser infrared line stadia surveying
The distance of sand pit and sand dune in vertical direction；Second camera is placed in sink side, and shooting jet stream projects punching from circular copper pipe
Hit the formation on sand dune and motion process in the entire scour process in sand bed.
Structure of the invention rationally, manufacture be easy, it is easy to use, through the invention, the experimental provision include angle scale,
Circular copper pipe, sand bed, reservoir, magnetic drive pump, flowmeter, gate valve, impulse generator, sink, hose, baffle, camera (packet
Include first camera, second camera) and laser infrared line rangefinder, from circular copper pipe injection, impact is formed not jet stream in sand bed
The sand pit and sand dune of similar shape.One of important content of the present invention, angle scale are to dig out 1 on one 1/4 round poly (methyl methacrylate) plate
Centre bore and 7 it is lateral opening, centre bore and lateral opening line form 7 line segments for being separated by 15 degree, each centre bore and lateral opening two sides
Respectively 2 apertures of addition force copper pipe to be close to glass plate and pass through to add fixing piece at centre bore and lateral opening side position
Any line segment, so as to adjust the angle of attack of impact jet flow；Furthermore, it is possible to by stretching copper pipe or upper and lower adjusting angle scale
Impact distance highly to adjust copper pipe outlet and sand bed.The two of important content of the present invention, this experiment is using pulse generation
Device controls opening time and shut-in time by it, so that the pulsing jet of different frequency is formed, in order to eliminate pump itself pressure
Power pulsation bring impulse disturbances, this experiment use the magnetic drive pump for basically will not produce pressure fluctuation as power source.The present invention
The three of important content install first camera and laser infrared line rangefinder respectively above sink, and first camera is for shooting sand
The face profile in hole and sand dune, laser infrared line rangefinder are used for sand pit and sand dune in the range measurement in y-axis direction；In sink side
Second camera is placed in face, for shooting the formation on sand dune and motion process in entire scour process.
Beneficial outcomes of the invention are: Reynolds number, angle of attack, impact distance can be comprehensively studied by PIV experiment
And the pulse period floods the affecting laws of impact jet flow performance of flushing to pulsed.
Detailed description of the invention
Fig. 1 is main view direction structural schematic diagram of the invention.
Fig. 2 is overlook direction structural schematic diagram of the invention.
In figure: 1 angle scale, 2 circular copper pipes, 3 sand beds, 4 tail gates, 5 reservoirs, 6 magnetic drive pumps, 7 flowmeters, 8 gate valves, 9
Impulse generator, 10 sinks, 11 hoses, 12 baffles, 13 first cameras, 14 laser infrared line rangefinders, 15 second cameras.
Specific embodiment
Below in conjunction with the attached drawing in present example, the technical solution in present example is described in detail.
A kind of pulsed for scouring experiment floods impact jet flow experimental provision, including angle scale 1, circular copper pipe 2, husky
Bed 3, reservoir 5, magnetic drive pump 6, flowmeter 7, gate valve 8, impulse generator 9, sink 10, hose 11, baffle 12, the first phase
Machine 13, laser infrared line rangefinder 14, second camera 15.
Angle scale 1 is fixed on support frame；Circular copper pipe 2 and the detachable fixation of angle scale 1, and circular copper pipe 2 is at angle
1 upper angle of scale is adjustable.
Two block baffles 12 are placed in 10 bottom interval of sink, sand bed 3 is put among two block baffles 12；Reservoir 5 successively passes through
Magnetic drive pump 6, flowmeter 7, gate valve 8, impulse generator 9, hose 11 and the perforation of circular copper pipe 2 connect, 2 one end of circular copper pipe
It is penetrated through with hose 11, the other end is placed in 3 top of sand bed in sink 10；Water in reservoir 5 sequentially pass through magnetic drive pump 6,
Flowmeter 7, gate valve 8, impulse generator 9, hose 11, circular copper pipe 2, and projected from circular copper pipe 2, impact sand bed 3
On.Jet stream is projected from circular copper pipe 2, is impacted in sand bed 3, and the sand pit for being similar to ellipse is formed, and in sand pit
Sand is washed to downstream and forms sand dune.
First camera 13, laser infrared line rangefinder 14 are installed on 10 top of sink, and first camera 13 is for shooting sand pit
And the face profile on sand dune, laser infrared line rangefinder 14 in the range measurement of vertical direction, that is, are used for for sand pit and sand dune
Measure the depth in sand pit and the height on sand dune；Second camera 15 is placed in 10 side of sink, for shooting jet stream from round copper
It is projected in pipe 2 and impacts the formation on sand dune and motion process in the entire scour process in sand bed 3.
In the present embodiment, sand bed 3 is what natural sand was formed.Sink 10 is tempered glass sink, and the shape of sink 10 is side
Shape.
Sink 10 is set to the top of reservoir 5, gap is arranged in the side wall upper part of sink 10, under being arranged on gap
Gate 4, gap are located at the top of reservoir 5.
The shape of angle scale 1 is 1/4 round, be arranged on angle scale 1 centre bore, 7 it is lateral opening, centre bore is set to angle
The right angle of disk 1, at 7 lateral opening arc-shaped sides for being set to angle scale 1, centre bore and 7 lateral opening lines formed 7 it is mutual it
Between 15 degree of the line segment in interval.2 apertures are added in centre bore and each lateral opening two sides, 2 apertures of centre bore two sides and
2 mountable fixing pieces of aperture of lateral opening two sides, circular copper pipe 2 is close to by fixing piece to be fixed on angle scale 1, and circle is passed through
Shape copper pipe 2 be fixed on it is different it is lateral opening on, the angle of adjustment circular copper pipe 2 is realized, so as to adjust the angle of attack of impact jet flow.
Further, circular copper pipe 2 is stretchable formula circular copper pipe.Impulse generator 9 is used to form the arteries and veins of different frequency
Rush jet stream.Angle scale 1 can move up and down on the support frame.
A method of the pulsed for scouring experiment is flooded impact jet flow experimental provision and is measured are as follows: will justify first
Shape copper pipe 2 adjusts angle on angle scale 1, and is fixed on angle scale 1；Circular copper pipe 2 is placed in 3 top of sand bed；Start magnetic
Power pumps 6, and the water in reservoir 5 sequentially passes through magnetic drive pump 6, flowmeter 7, gate valve 8, impulse generator 9, hose 11, circle
Copper pipe 2, and projected from circular copper pipe 2, it impacts in sand bed 3, forms the sand pit for being similar to ellipse, and the sand in sand pit
Son is washed to downstream and forms sand dune；The face profile that sand pit and sand dune are shot with first camera 13, with laser infrared line ranging
Instrument 14 measures sand pit and sand dune in the distance of vertical direction；Second camera 15 is placed in 10 side of sink, shoots jet stream from circle
It is projected in copper pipe 2 and impacts the formation on sand dune and motion process in the entire scour process in sand bed 3.
In Fig. 1, circular copper pipe 2 is fixed on angle scale 1, puts down two block baffles 12 in 10 bottom interval of sink, intermediate
It is put into natural sand and forms sand bed 3, the water in sink 10, which is flowed in reservoir 5 by tail gates 4, (opens tail gates 4, in sink 10
Water flowed in reservoir 5 by gap), the water in reservoir 5 passes through magnetic drive pump 6, flowmeter 7, gate valve 8, pulse generation
Device 9, hose 11 flow in circular copper pipe 2, and jet stream is projected from circular copper pipe 2, impact in sand bed 3, form one closely
It is similar to the sand pit of ellipse, and the sand in sand pit is washed to downstream and forms sand dune, sand pit depth and sand dune height are fixed respectively
Justice isdWithh, the intersection point O as a reference point of the central axes of circular copper pipe 2 and 3 wall surface of sand bed, middle section and sand bed wall in jet stream
Oxy coordinate system is established in face.First camera 13 and laser infrared line rangefinder 14, first camera 13 are installed respectively in the top of sink
For shooting the face profile in sand pit and sand dune, laser infrared line rangefinder 14 is used for sand pit and sand dune in the distance in y-axis direction
Measurement.Gate valve 8 adjusts the reynolds number Re of impact jet flow, and angle scale 1 and circular copper pipe 2 adjust the angle of attack of impact jet flowθWith
Shock heightH, the pulse period of the adjustment impact jet flow of impulse generator 9T。
In Fig. 2, Oxz coordinate system is established in 3 wall surface of sand bed, the face profile on sand pit and sand dune is 3 approximate ellipses,
Length is respectively defined as with widtha 1、a 2、a 3、b 1、b 2、b 3, first camera 13 is used to shoot the face profile on sand pit and sand dune,
Second camera 15 is placed in the side of sink, for shooting the formation on sand dune and motion process in entire scour process.
Claims (9)
1. a kind of pulsed for scouring experiment floods impact jet flow experimental provision, it is characterized in that: including angle scale (1), circle
Shape copper pipe (2), sand bed (3), reservoir (5), magnetic drive pump (6), flowmeter (7), gate valve (8), impulse generator (9), sink
(10), hose (11), baffle (12), first camera (13), laser infrared line rangefinder (14), second camera (15)；
The angle scale (1) is fixed on support frame；The circular copper pipe (2) and angle scale (1) detachable fixation, and it is round
Copper pipe (2) is adjustable in angle scale (1) upper angle；
Sink (10) bottom interval is placed with two block baffles (12), and it is intermediate that sand bed (3) is put in two block baffles (12)；
Reservoir (5) is successively through magnetic drive pump (6), flowmeter (7), gate valve (8), impulse generator (9), hose (11) and circle
Shape copper pipe (2) perforation connection, circular copper pipe (2) one end and hose (11) penetrate through, and the other end is placed in the sand in sink (10)
Above bed (3)；Water in reservoir (5) sequentially passes through magnetic drive pump (6), flowmeter (7), gate valve (8), impulse generator (9), connection
Hose (11), circular copper pipe (2) are connect, and is projected from circular copper pipe (2), is impacted on sand bed (3)；
Jet stream is projected from the circular copper pipe (2), is impacted on sand bed (3), forms the sand pit for being similar to ellipse, and sand pit
In sand be washed to downstream formed sand dune；
The first camera (13), laser infrared line rangefinder (14) are installed on above sink (10), and first camera (13) is used for
The face profile on sand pit and sand dune is shot, laser infrared line rangefinder (14) is surveyed for sand pit and sand dune in the distance of vertical direction
Amount；The second camera (15) is placed in sink (10) side, impacts sand for shooting jet stream injection from circular copper pipe (2)
The formation on sand dune and motion process in entire scour process on bed (3).
2. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the sand bed (3) is that natural sand is formed.
3. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the sink (10) is tempered glass sink, and sink (10) is rectangular.
4. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the sink (10) is set to the top of reservoir (5), and the side wall upper part of sink (10) is equipped with gap, sets on gap
Have tail gates (4), gap is located at the top of reservoir (5).
5. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the shape of the angle scale (1) is 1/4 round, and the angle scale (1) is equipped with centre bore, 7 lateral opening, centre bore settings
Right angle in angle scale (1), at 7 lateral opening arc-shaped sides for being set to angle scale (1), centre bore and 7 lateral opening line shapes
It is spaced 15 degree of line segment between each other at 7；
2 apertures are added in the centre bore and each lateral opening two sides, 2 apertures of centre bore two sides and lateral opening two sides
2 mountable fixing pieces of aperture, circular copper pipe (2) is close to by fixing piece to be fixed on angle scale (1), passes through circular copper pipe
(2) be fixed on it is different it is lateral opening on, the angle of adjustment circular copper pipe (2) is realized, so as to adjust the angle of attack of impact jet flow.
6. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the circular copper pipe (2) is stretchable formula circular copper pipe.
7. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the impulse generator (9) is used to form the pulsing jet of different frequency.
8. a kind of pulsed for scouring experiment according to claim 1 floods impact jet flow experimental provision, feature
Be: the angle scale (1) can move up and down on the support frame.
9. a kind of pulsed for scouring experiment described in any one of -8 claims floods impact according to claim 1
The method that jet stream experimental provision measures, it is characterized in that:
Circular copper pipe (2) is adjusted into angle on angle scale (1) first, and is fixed on angle scale (1)；Circular copper pipe (2)
It is placed in above sand bed (3)；Start magnetic drive pump (6), the water in reservoir (5) sequentially passes through magnetic drive pump (6), flowmeter (7), gate valve
(8), impulse generator (9), hose (11), circular copper pipe (2), and projected from circular copper pipe (2), impact sand bed (3)
On, the sand pit for being similar to ellipse is formed, and the sand in sand pit is washed to downstream and forms sand dune；Use first camera
(13) face profile for shooting sand pit and sand dune measures sand pit and sand dune in vertical direction with laser infrared line rangefinder (14)
Distance；Second camera (15) is placed in sink (10) side, and shooting jet stream projects from circular copper pipe (2) and impacts sand bed (3)
On entire scour process in sand dune formation and motion process.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110930851A (en) * | 2019-12-30 | 2020-03-27 | 南昌工程学院 | Trajectory jet fluidized bed scouring experimental device and experimental method |
| CN113465865A (en) * | 2021-06-25 | 2021-10-01 | 扬州大学 | Soil wind power erosion process simulation experiment device and experiment method |
| CN113848035A (en) * | 2021-09-17 | 2021-12-28 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
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| CN110930851A (en) * | 2019-12-30 | 2020-03-27 | 南昌工程学院 | Trajectory jet fluidized bed scouring experimental device and experimental method |
| CN113465865A (en) * | 2021-06-25 | 2021-10-01 | 扬州大学 | Soil wind power erosion process simulation experiment device and experiment method |
| CN113848035A (en) * | 2021-09-17 | 2021-12-28 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
| CN113848035B (en) * | 2021-09-17 | 2023-12-05 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
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