CN106768843A - A kind of pin hole injecting type two phase flow dynamic observation device - Google Patents
A kind of pin hole injecting type two phase flow dynamic observation device Download PDFInfo
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- CN106768843A CN106768843A CN201710013854.7A CN201710013854A CN106768843A CN 106768843 A CN106768843 A CN 106768843A CN 201710013854 A CN201710013854 A CN 201710013854A CN 106768843 A CN106768843 A CN 106768843A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention discloses a kind of pin hole injecting type two phase flow dynamic observation device, belong to two phase flow dynamic observation technology field, including constant pressure gas cylinder, pressure-reducing valve, liquid storage tank, liquid pump, first pressure table, first control valve, second control valve, pin hole injecting type two-phase simulated flow device and camera, constant pressure gas cylinder is sequentially connected pressure-reducing valve, first pressure table and the first control valve, liquid storage tank is sequentially connected liquid pump and the second control valve, second control valve and the first control valve connection pin hole injecting type two-phase simulated flow device, place camera in the side of pin hole injecting type two-phase simulated flow device；Pin hole injecting type two-phase simulated flow device includes parallel and two sheet glass being oppositely arranged and at least two clearance gauges being disposed between two sheet glass, and the opposite sides of each clearance gauge is close to two sheet glass；Adjacent two clearance gauge and two sheet glass form a microchannel.The present invention can simulate the flow condition of biphase gas and liquid flow, and can directly observe and real time record biphase gas and liquid flow dynamic flow pattern.
Description
【Technical field】
The present invention relates to two phase flow dynamic observation technology field, more particularly to a kind of pin hole injecting type two phase flow is dynamically observed
Device.
【Background technology】
Interaction between the characteristics of motion of biphase gas and liquid flow and the form and other motion morphologies is two-phase fluid
One of main research of mechanics.For biphase gas and liquid flow research with industrial technology the need for and grow up,
Particularly in 21 century, due to chemical industry, metallurgy, Aero-Space, Thermal Power Engineering, hydraulic engineering, or even nuclear energy engineering, environmental protection
Deng the rise and development in field, the research of biphase gas and liquid flow is increasingly paid attention to, thus promote to be formed as one it is complete should
Use basic subject.But due to the limitation of the intrinsic complexity of gas-liquid two-phase flow problem, diversity and method of testing, so
So far flow pattern formation for biphase gas and liquid flow, flow mechanism, drag characteristic, momentum and energy transmission etc. be not also fully aware of,
And there is more difference to the analysis of many correlated phenomenas.Therefore, the research to flow pattern of gas-liquid two-phase flow is very crucial, is
The top priority of two phase flow research.In addition, flow pattern of gas-liquid two-phase flow research also has important application value in engineering.
The theory analysis of two phase flow is more much more difficult than single-phase flow, and the general differential equation group for describing two phase flow is not yet built so far
It is vertical.A large amount of theoretical works use two class simplified models-homogeneous model and phase-separation model；Homogeneous model is to see two-phase medium
Into a kind of mixture for mixing highly uniform, and assume that the concept and method that process single-phase flow stand good in two-phase
Stream, while stilling need also to make its physical property and hereditary property rational hypothesis；And phase-separation model thinks single-phase flow
Concept and method can be used in each phase of binary system, and also need to consider the interaction between two-phase simultaneously.Although more than
All also there are many difficulties in two kinds of applications of model, but with the development of computing technique, its application has also been in progress.
Compared with the theory analysis of two phase flow, the experimental study of two phase flow is then the basic skills for grasping two phase flow rule.
Be widely used at present optical method (including light absorbs, scattering, interference, refraction etc.), other radiation absorptions and scattering method, trace method with
And electric capacity and conductance method etc. determine the important parameter in two phase flow, such as pressure, voidage, average film thickness, liquid-drop diameter, motion speed
The parameters such as degree.And in the sense, to two phase flow rule deeper into understanding, more depend on the progress of experimental technique.
【The content of the invention】
In view of the above, it is necessary to provide a kind of pin hole injecting type two phase flow dynamic observation device, the pin hole injecting type
Two phase flow dynamic observation device can directly observe the dynamic flow pattern of biphase gas and liquid flow, and carry out captured in real-time note to the flow pattern
Record, consequently facilitating dynamic analysis and static analysis to biphase gas and liquid flow.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：A kind of pin hole injecting type two phase flow is dynamically observed
Device, including constant pressure gas cylinder, pressure-reducing valve, liquid storage tank, liquid pump, first pressure table, the first control valve, the second control valve, pin hole spray
Formula two-phase simulated flow device and camera are penetrated, the constant pressure gas cylinder is sequentially connected pressure-reducing valve, first pressure table and the first control
Valve, the liquid storage tank is sequentially connected liquid pump and the second control valve, and the second control valve connects pin jointly with the first control valve again
The camera is placed in hole injecting type two-phase simulated flow device, the side of the pin hole injecting type two-phase simulated flow device, and
The camera lens of the camera is towards pin hole injecting type two-phase simulated flow device；
The pin hole injecting type two-phase simulated flow device includes two sheet glass and at least two clearance gauges, and two sheet glass are parallel and phase
To setting, all clearance gauges are disposed between two sheet glass, and the opposite sides of each clearance gauge is close to two sheet glass；Phase
Adjacent two clearance gauges and two sheet glass form a microchannel, and all microchannels do not connect mutually, and each microchannel has what is communicated with the external world
Arrival end and the port of export, the arrival end connection first control valve and the second control valve.
Further, clearance gauge be arranged in parallel two-by-two；Each clearance gauge is identical along the size on the microchannel circulating direction.
Further, the pin hole injecting type two-phase simulated flow device includes holding down assembly；It is described to hold down assembly including two
Compression bar and tight latch fitting, two compression bars set up separately on two sheet glass, and side is relative with side where clearance gauge where each compression bar；
Two compression bars are also oppositely arranged with same clearance gauge；Sheet glass outside is extended at the two ends of each compression bar, and is located at two ends
The described tight latch fitting that two compression bars are interconnected is installed on the part on the outside of sheet glass.
Further, the quantity of the setting that holds down assembly is equal to the quantity that clearance gauge is set.
Further, hollow V-type needle apparatus are set at the arrival end of each microchannel, and the needle apparatus have two
Entrance point and ejection end, two entrance points are respectively communicated with the first control valve and the second control valve, and the ejection end stretches into micro- logical
In road.
Further, the liquid pump is peristaltic pump.
Further, the first control valve and the second control valve are magnetic valve.
Further, at where the camera lens of the camera towards microchannel；The camera is high-speed camera,
And be connected with computer equipment.
Further, the pin hole injecting type two phase flow dynamic observation device also includes trigger switch, the trigger switch
Connection first simultaneously controls valve, the second control valve and camera.
Further, the pin hole injecting type two phase flow dynamic observation device also includes illumination apparatus, the illumination apparatus
It is placed on pin hole injecting type two-phase simulated flow device side.
The invention has the advantages that：
1. the present invention provides the passage-microchannel of gas liquid two-phase flow by pin hole injecting type two-phase simulated flow device,
And its building block is constituted using the sheet glass of transparent material in the pin hole injecting type two-phase simulated flow device, consequently facilitating
Experimenter observes the flow regime of gas-liquid two-phase through sheet glass, and the observation is more directly perceived, and the accuracy and feasibility observed
Preferably；In addition, the present invention also provides and conveys gas by the setting of constant pressure gas cylinder, pressure-reducing valve etc., and with by liquid storage tank, liquid
The fluid pipeline of the compositions such as pump coordinates, common for pin hole injecting type two-phase simulated flow device provides gas and liquid, so that
The simulation biphase gas and liquid flow that entirely observation device can be complete；Overall structure of the present invention is simple and reliable, and scheme is practical.
2. the camera that the present invention is set in pin hole injecting type two-phase simulated flow device side captured in real-time and can be recorded
The flow regime of process of the test gas-liquid two-phase, and then be conducive to experimenter's later stage to enter Mobile state analysis and static state to biphase gas and liquid flow
Analysis.
【Brief description of the drawings】
Fig. 1 is a kind of structure diagram of pin hole injecting type two phase flow dynamic observation device of the invention.
Fig. 2 is the Structure explosion diagram of pin hole injecting type two-phase simulated flow device in Fig. 1.
Fig. 3 is the structural representation of pin hole injecting type two-phase simulated flow device in Fig. 1.
Main element symbol description
In figure, constant pressure gas cylinder 1, pressure-reducing valve 2, the control of first pressure table 3, first valve 4, liquid storage tank 5, liquid pump 6, second pressure
The control of table 7, second valve 8, pin hole injecting type two-phase simulated flow device 9, sheet glass 91, clearance gauge 92, hold down assembly 93, compression bar
931st, microchannel 94, needle apparatus 95, trigger switch 10, camera 20, computer equipment 30, illumination apparatus 40.
Following specific embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
【Specific embodiment】
Fig. 1 to Fig. 3 is referred to, in a kind of better embodiment of the invention, a kind of pin hole injecting type two phase flow dynamic
Observation device, including the control of a constant pressure gas cylinder 1, a pressure-reducing valve 2, a liquid storage tank 5, a liquid pump 6, a first pressure table 3, one first
Valve 4, one second control valve 8, a pin hole injecting type two-phase simulated flow device 9 and a camera 20, constant pressure gas cylinder 1 are sequentially connected
Pressure-reducing valve 2, the control valve 4 of first pressure table 3 and first, liquid storage tank 5 are sequentially connected the control valve 8 of liquid pump 6 and second, the second control valve
8 connect pin hole injecting type two-phase simulated flow device 9 jointly with the first control valve 4 again, pin hole injecting type two-phase simulated flow device 9
Camera 20 is placed in side, and camera 20 camera lens towards pin hole injecting type two-phase simulated flow device 9；Pin hole injecting type
Two-phase simulated flow device 9 includes two sheet glass 91 and at least two clearance gauges 92, and two sheet glass 91 are parallel and are oppositely arranged, all clearance gauges
92 are disposed between two sheet glass 91, and the opposite sides of each clearance gauge 92 is close to two sheet glass 91；Adjacent two plug
92 and two sheet glass of chi 91 forms a microchannel 94, and all microchannels 94 do not connect mutually, and each microchannel 94 has and extraneous phase
Logical arrival end and the port of export, wherein, arrival end connection first controls the control valve 8 of valve 4 and second.
The present invention forms the flow channel of biphase gas and liquid flow-micro- by designing pin hole injecting type two-phase simulated flow device 9
Passage 94, and mobility status when being shot by setting camera 20 and recording Liquid Flow in the microchannel 94, so that
It is easy to dynamic analysis and static analysis of experimenter's later stage to biphase gas and liquid flow；In the pin hole injecting type two-phase simulated flow device 9
In, the sheet glass 91 set by it is transparent material, can come captured in real-time, record gas-liquid using camera 20 beneficial to experimenter
The flow regime of two phase flow, at the same can also be easy to experimenter more intuitively observation experiment process Liquid Flow when flowing shape
State；And the gas used in process of the test is then provided by constant pressure gas cylinder 1, and the pressure-reducing valve by being connected with constant pressure gas cylinder 1
2nd, during the gas pipeline that the control of first pressure table 3 and first valve 4 is formed flows into microchannel 94, liquid is carried by liquid storage tank 5
Form fluid pipeline for, the liquid storage tank 5 and the control valve 8 of liquid pump 6 and second, liquid by after the fluid pipeline with gas pipeline in
The gas of outflow is together spurted into microchannel 94, forms the form of biphase gas and liquid flow.
In the present embodiment, constant pressure gas cylinder 1 used is CO2Constant pressure gas cylinder 1, can be pin hole injecting type two phase flow mould
Intend the CO that device 9 provides constant air pressure2Gas；Pressure-reducing valve 2 is used to adjust the pressure of the gas from the outflow of constant pressure gas cylinder 1, with suitable
Answer requirement of the experimenter to gas pressure；First pressure table 3 is used to detect the pressure by gas in gas pipeline after pressure-reducing valve 2
Power, checks the pressure of gas in order to experimenter, and when will appreciate that liquid communication in fluid pipeline for the ease of experimenter
Pressure condition, the present invention is also provided with a pressure gauge i.e. second pressure table 7 on fluid pipeline, preferably sets the second pressure table 7
Put between the control valve 8 of liquid pump 6 and second；The first control control valve 8 of valve 4 and second is respectively used to control gas pipeline and liquid
The break-make of pipeline.
Further, Fig. 2 and Fig. 3 is referred to, in pin hole injecting type two-phase simulated flow device 9, is put down between clearance gauge 92 two-by-two
Row is set, and each clearance gauge 92 is identical along the size on the circulating direction of microchannel 94, to form regular microchannel 94, reduces gas-liquid
Flow process makes the possibility that Liquid Flow undergos mutation because passage changes, and then more accurately divides beneficial to experimenter
The mobility status of gassing liquid two-phase；Preferably, sheet glass 91 along the size on the circulating direction of microchannel 94 with clearance gauge 92 along micro-
Size on the circulating direction of passage 94 is identical.In addition, in the present embodiment, the quantity of clearance gauge 92 is two, but present invention plug
The quantity of chi 92 is not limited to two, has pin hole injecting type two-phase simulated flow device 9 with the setting by many clearance gauges 92
Multiple microchannels 94, consequently facilitating experimenter carries out the comparative study of multiple biphase gas and liquid flows simultaneously.
In the present invention, in order to ensure clearance gauge 92 and the junction of sheet glass 91 in pin hole injecting type two-phase simulated flow device 9
Sealing, pin hole injecting type two-phase simulated flow device 9 is also provided with holding down assembly 93.Hold down assembly 93 include two compression bars
931 and tight latch fitting, two compression bars 931 set up separately on two sheet glass 91, and the place side of each compression bar 931 with where clearance gauge 92
Side is relative；Two compression bars 931 are also oppositely arranged with same clearance gauge 92；Extend sheet glass 91 in the two ends of each compression bar 931
Outside, and the tight latch fitting installing interconnect two compression bars 931 is located on the part in the outside of sheet glass 91 at two ends, with by two
Compression bar 931 is covered in the opposite sides of clearance gauge 92 and tight latch fitting assigns the thrust of compression bar 931 to realize clearance gauge 92 and glass
Being mutually close between glass piece 91, so as to ensure the sealing between clearance gauge 92 and sheet glass 91, reduce Liquid Flow Process Gas
The possibility of liquid leakage.Preferably, the quantity that tight component is set is equal to the quantity that clearance gauge 92 is set, so that the correspondence of each clearance gauge 92
Set one and hold down assembly 93, it is ensured that the sealing of microchannel 94.
In addition, referring to Fig. 1, the present invention sets a hollow V-type needle apparatus at the arrival end of each microchannel 94
95, so that gas and liquid are mixed into microchannel 94 after being sufficiently mixed, the needle apparatus 95 have two entrance points and a spray
Penetrate end, two entrance points be respectively communicated with the first control valve 4 and the second control valve 8, i.e. two entrance points respectively with gas conduit outlet, liquid
Body pipe outlet is connected, and ejection end is stretched into microchannel 94, will be in the mixed gas-liquid injection of ejection end to microchannel 94.
Preferably, liquid pump of the invention 6 selects peristaltic pump, to adjust the flow velocity of liquid in process of the test and make liquid steady
Be delivered in microchannel 94, improve biphase gas and liquid flow flow when stability and experiment accuracy.
Preferably, at where the camera lens of camera 20 towards microchannel 94, preferably shot in order to camera 20
The flow condition of biphase gas and liquid flow in microchannel 94.Further, in order to improve the transient state high speed observing capacity of camera 20,
Camera of the invention 20 uses high-speed camera, and the high-speed camera is connected into computer equipment 30, with by height
Liquid Flow situation in the apparent shooting microchannel 94 of fast video camera, and beneficial to computer equipment 30 in process of the test monitor in real time
With observation microchannel 94 in biphase gas and liquid flow mobility status, and the later stage to the image captured by high-speed camera carry out treatment and
Analysis.Wherein, computer equipment 30 is entered by being arranged on matlab softwares on computer equipment 30 when processing image
Row treatment, the treatment is split based on thresholding method to RGB image and Boundary Extraction analyzes image, its specific fortune
Row process is as follows：First, the image/video captured by reading high-speed camera, and the frame number of the image video files is searched, and
Image/video is converted into single image；Then the RGB image that will be obtained is converted to gray level image, and gray value is carried out
Weighing apparatusization；Rank scanning image, row threshold division is entered to image again；Image after segmentation is carried out into binaryzation, and to binaryzation after
Image zooming-out border, and to carrying out white filling in border；Range shorter is carried out to treatment image, it is unnecessary white in removal figure
Point, you can.
Further, please continue to refer to Fig. 1, in order that the shooting of camera 20 and biphase gas and liquid flow in microchannel 94
Synchronously carry out, pin hole injecting type two phase flow dynamic observation device of the invention also includes a trigger switch 10, the trigger switch 10
Connection first simultaneously controls valve 4, second control valve 8 and camera 20, and preferably from magnetic valve as of the invention first
The control control valve 8 of valve 4 and second, realizes the automatic control of the first control valve 4 and the second control valve 8 in the form of by magnetic valve
System.
In the present invention, the pin hole injecting type two phase flow dynamic observation device also includes an illumination apparatus 40, the illumination
Device 40 is placed on the side of pin hole injecting type two-phase simulated flow device 9, is sprayed with improving pin hole in biphase gas and liquid flow process of the test
The intensity of illumination of formula two-phase simulated flow device 9, and then improve the quality that camera 20 shoots.
The operation principle of pin hole injecting type two phase flow dynamic observation device is：First, constant pressure gas cylinder 1 is opened, and is adjusted
The aperture of pressure valve 2 is reduced, while the pressure reading on first pressure table 3 is observed, when the pressure reading of first pressure table 3 is equal to gas
During pressure preset value, stop the aperture of regulation pressure-reducing valve 2, and maintain the aperture size of now pressure-reducing valve 2；Meanwhile, open liquid storage tank
5, and the aperture of peristaltic pump is adjusted, while the flow velocity reading on peristaltic pump is observed, when the flow velocity reading on peristaltic pump is equal to liquid
During flow velocity preset value, stop the aperture of regulation peristaltic pump, and maintain the aperture size of now peristaltic pump；Then, triggering is pressed to open
10 are closed, the first control valve 4, second control valve 8 and camera 20 are opened simultaneously, and gas and liquid pass through needle apparatus 95 respectively
Into in microchannel 94, meanwhile, camera 20 is also begun to record a video microchannel 94, and video recording situation is generated in electricity in real time
Brain equipment 30, until observation experiment terminates.
Automation in order to realize observation experiment process of the invention, in pin hole injecting type two phase flow dynamic observation device
In be also provided with controller, the controller connects constant pressure gas cylinder 1, pressure-reducing valve 2, first pressure table 3, peristaltic pump and triggering and opens respectively
10 are closed, a gas preset value and the preset value with flow rate of liquid are set in it, can received in the detection gas passage of first pressure table 3
Liquid real-time flow rate measured by the pressure value and peristaltic pump of gas, when the gas pressure value that controller is received is pre- equal to gas
If during value, controller control pressure-reducing valve 2 stops regulation aperture, when the liquid real-time flow rate that controller is received is equal to flow rate of liquid
Preset value when, controller control peristaltic pump stop regulation aperture, when pressure-reducing valve 2 and peristaltic pump stop regulation aperture when, control
Device processed sends out code to trigger switch 10.Preferably, controller is integrated in computer equipment 30.
Now, the control principle of the pin hole injecting type two phase flow dynamic observation device process of the test is as follows：
1) controller control constant pressure gas cylinder 1 is opened, while adjusting the aperture of pressure-reducing valve 2, peristaltic pump；
2) first pressure table 3 detection gas passage in gas pressure value, and by the gas pressure value signal of generation send out in
Controller；Meanwhile, peristaltic pump detects the real-time flow rate of its exit liquid, and generate corresponding liquid real-time flow rate signal send out in
Controller；
3) controller comparative analysis gas pressure value and the interior gas preset value for setting, when result display gas pressure value is equal to
During gas preset value, controller stops the aperture of regulation pressure-reducing valve 2, and enters step 4)；Conversely, into step 4)；
4) preset value of controller comparative analysis liquid real-time flow rate and the interior flow rate of liquid for setting, when result shows liquid reality
When flow velocity when being not equal to the preset value of flow rate of liquid, return to step 2)；Conversely, controller stops the aperture of regulation peristaltic pump, and
Into step 5)；
5) when controller comparative analysis structure display gas pressure value is equal to gas preset value and liquid real-time flow rate is equal to
During the preset value of flow rate of liquid, controller control trigger switch 10 is closed；Conversely, return to step 2).
Described above is directed to the detailed description of preferably possible embodiments of the invention, but embodiment is not limited to this hair
Bright patent claim, the equal change completed under the technical spirit suggested by all present invention or modification change, all should belong to
Cover the scope of the claims in the present invention.
Claims (10)
1. a kind of pin hole injecting type two phase flow dynamic observation device, it is characterised in that：Including constant pressure gas cylinder, pressure-reducing valve, liquid storage tank,
Liquid pump, first pressure table, the first control valve, the second control valve, pin hole injecting type two-phase simulated flow device and camera, it is described
Constant pressure gas cylinder is sequentially connected pressure-reducing valve, first pressure table and the first control valve, and the liquid storage tank is sequentially connected liquid pump and the second control
Valve processed, the second control valve connects pin hole injecting type two-phase simulated flow device, the pin hole spray jointly with the first control valve again
The camera is placed in the side for penetrating formula two-phase simulated flow device, and the camera camera lens towards pin hole injecting type two
Phase flow field simulation device；
The pin hole injecting type two-phase simulated flow device includes two sheet glass and at least two clearance gauges, and two sheet glass are parallel and set relatively
Put, all clearance gauges are disposed between two sheet glass, and the opposite sides of each clearance gauge is close to two sheet glass；Adjacent two
Clearance gauge and two sheet glass form a microchannel, and all microchannels do not connect mutually, and each microchannel has the entrance communicated with the external world
End and the port of export, the arrival end connection first control valve and the second control valve.
2. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：Clearance gauge is parallel two-by-two sets
Put；Each clearance gauge is identical along the size on the microchannel circulating direction.
3. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：The pin hole injecting type
Two-phase simulated flow device includes holding down assembly；Described to hold down assembly including two compression bars and tight latch fitting, two compression bars set up separately two
Side is relative with side where clearance gauge on sheet glass, and where each compression bar；Two compression bars are also oppositely arranged with same clearance gauge；Often
Sheet glass outside is extended at the two ends of one compression bar, and is installed two compression bars on the part on the outside of sheet glass at two ends
The described tight latch fitting of interconnection.
4. pin hole injecting type two phase flow as claimed in claim 3 dynamic observation device, it is characterised in that：Described holding down assembly sets
The quantity put is equal to the quantity that clearance gauge is set.
5. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：Each microchannel enters
Hollow V-type needle apparatus are set at mouth end, and the needle apparatus have two entrance points and ejection end, and two entrance points are respectively communicated with
The first control valve and the second control valve, the ejection end are stretched into microchannel.
6. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：The liquid pump is wriggling
Pump.
7. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：The first control valve
Magnetic valve is with the second control valve.
8. pin hole injecting type two phase flow as claimed in claim 1 dynamic observation device, it is characterised in that：The camera
At where camera lens towards microchannel；The camera is high-speed camera, and is connected with computer equipment.
9. the dynamic observation device of pin hole injecting type two phase flow as described in claim 1-8 is any, it is characterised in that：Also include touching
Hair switch, the trigger switch connects first and controls valve, the second control valve and camera simultaneously.
10. the dynamic observation device of pin hole injecting type two phase flow as described in claim 1-8 is any, it is characterised in that：Also include
Illumination apparatus, the illumination apparatus are placed on pin hole injecting type two-phase simulated flow device side.
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| CN201710013854.7A CN106768843B (en) | 2017-01-09 | 2017-01-09 | Pinhole jet type two-phase flow dynamic observation device |
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| CN201710013854.7A CN106768843B (en) | 2017-01-09 | 2017-01-09 | Pinhole jet type two-phase flow dynamic observation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514399A (en) * | 2019-08-15 | 2019-11-29 | 北京理工大学 | A kind of controllable single-phase flow flow field generating device of array |
| CN110514400A (en) * | 2019-08-15 | 2019-11-29 | 北京理工大学 | A kind of controllable two phase flow flow field generating device of array |
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