CN105547954A - Visualization experiment apparatus for two-phase flow of fractured rock mass - Google Patents
Visualization experiment apparatus for two-phase flow of fractured rock mass Download PDFInfo
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- CN105547954A CN105547954A CN201510906972.1A CN201510906972A CN105547954A CN 105547954 A CN105547954 A CN 105547954A CN 201510906972 A CN201510906972 A CN 201510906972A CN 105547954 A CN105547954 A CN 105547954A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
Abstract
The invention discloses a visualization experiment apparatus for a two-phase flow of a fractured rock mass. The apparatus comprises a two-phase-flow feeding system, a fractured rock mass physical model, and a monitoring system, wherein the two-phase-flow feeding system provides the two-phase flow to the fractured rock mass physical model; the fractured rock mass physical model is made of a transparent material; and the monitoring system at least comprises a high-speed camera capable of motoring a two-phase-flow interface. Through monitoring transport properties of liquid and gas and capturing variation laws of the interface of liquid and gas phases by the high-speed camera, data support is provided for multi-phase flow in coal mine longwall mining, coal seam gas extraction, petroleum and natural gas exploitation, and underground petroleum strategic reservoir. Fracture is configured to simulate natural rock mass fractures and exists in a real form of a fracture network. Through a structure of left, right, and lower blocks with combination of a seal cover, accuracy of experiment parameters is ensured, and inaccurate experiment results due to untight sealing of a physical model itself is avoided.
Description
Technical field
The present invention relates to a kind of crack rock two-phase flow experimental apparatus for research, particularly a kind of crack rock two-phase flow visual experimental apparatus.
Background technology
In underground coal resource exploitation process, because the moisture in coal body improves the desorption efficiency of coal gas, thus cause increasing of gas pressure, the two-phase fluid energy of flow occurred in coal and rock crack increases the danger of Gas Outburst; Crack rock two-phase flow (liquids and gases) percolation phenomenon under isothermy is a focus of current research, has important Research Significance and construction value to colliery broadwall, coal bed gas extraction, oil and gas exploitation and underground petroleum strategic reserve storehouse.The multiphase coupled percolation phenomenon of crack rock is extensively present in the transformation of geology rock and engineer applied, and wherein, the degree of roughness of surface in rock mass controls mechanics and the permeation fluid mechanics behavior of crack rock; Consider the variation characteristic of engineering rock mass at occurring in nature, polyphasic flow is a complicated coupling process.In prior art, the method for Flow In Jointed Rock Masses characteristic research has logistics organizations method, derivation of equation method and conceptional model method, and wherein logistics organizations research is the most important and the most direct approach of Flow In Jointed Rock Masses research; In the research of crack rock two-phase flow, the Interface Study of liquid and gas has very important significance, and in crack rock, under different crack width and fluid pressure condition, the interface of liquid and gas is time dependent.
Therefore, needing a kind of crack rock two-phase flow visual experimental apparatus, by controlling the change of external condition, can the liquid and gas interface changed in the strata model of crack be monitored, the Coupled Flow rule of research two-phase fluid in rock cranny net.
Summary of the invention
In view of this, the invention provides a kind of crack rock two-phase flow visual experimental apparatus, by controlling the change of external condition, can the liquid and gas interface changed in the strata model of crack be monitored, the Coupled Flow rule of research two-phase fluid in rock cranny net.
Crack rock two-phase flow visual experimental apparatus of the present invention, comprise two-phase flow feed system, crack rock thing mould, monitoring system, described two-phase flow feed system is crack rock thing mould supply two-phase flow, described crack rock thing mould is prepared from by transparent material, and described monitoring system at least comprises the high-speed camera can monitored two-phase flow interface.
Further, described crack rock thing mould comprises the thing mould body of seal assembly and T-shaped structure, and described thing mould body comprises rock mass, lower-left rock mass and bottom right rock mass and is spliced to form the crack of T-shaped structure, and described lower-left rock mass and bottom right rock mass are inverted L-shaped; Described seal assembly comprises the left block being arranged at end, crack respectively, right block and lower block, described left block is provided with the liquid injection hole and injecting hole that are communicated with crack respectively, described right block and lower block are respectively arranged with the first flow-out hole and the second flow-out hole that are communicated with crack, and described seal assembly also comprises the sealing shroud for sealing thing mould body sidewall.
Further; described crack rock thing mould also comprises stationary installation; described stationary installation comprises train wheel bridge assembly, lower plate assembly and vertical cleat assembly; cleat assembly is used for compressing in the horizontal direction left block and right piece; described lower plate assembly is used for compressing in the horizontal direction lower-left rock mass and bottom right rock mass, and described vertical cleat assembly is used for vertically compressing upper rock mass and lower block.
Further, described train wheel bridge assembly, lower plate assembly and vertical cleat assembly include two pieces of parallel clamping plate, screw rod that one end is in axial sliding connection through two clamping plates and with clamping plate and set nuts of being arranged at screw rod end be oppositely arranged; The screw rod two ends of described lower plate assembly are still provided with the horizontal spring that can apply compression to corresponding clamping plate, and the screw rod upper end of described vertical cleat assembly is provided with the uprighting spring that can apply compression to corresponding clamping plate.
Further, described left block, right block and lower block and the end face that respective crack end matches are provided with multiple parallel shunting groove along the length direction of respective crack end, each end face is also provided with mainstream trench and mainstream trench is vertical and be communicated in shunting groove, being communicated with injecting hole with liquid injection hole of described left block, described right block is communicated with the second flow-out hole with the first flow-out hole respectively with lower block mainstream trench separately.
Further, the mainstream trench of described left block comprises two the first mainstream trench and the second mainstream trench be parallel to each other, and described injecting hole and the first mainstream trench, described liquid injection hole is communicated with the second mainstream trench.
Further, also comprise data handling system, described monitoring system also comprises the first pressure transducer for detecting gas phase injection pressure, for detecting the second pressure transducer of liquid phase injection pressure and bringing out the 3rd pressure transducer of mouth pressure for detecting crack; Detection signal is transferred to data handling system by described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
Further, described monitoring system also comprises liquid phase stream amount detecting device and gas phase flow rate pick-up unit, and the two-phase flow that described crack rock thing mould flows out is successively by liquid phase stream amount detecting device and gas phase flow rate pick-up unit.
Further, described two-phase flow feed system comprises gas cylinder and liquid pressure pump, and the outlet side of described gas cylinder is communicated with injecting hole, and described fluid pressure delivery side of pump is communicated with liquid injection hole.
Further, crack rock thing mould is made up of transparent epoxide resin material, and described crack is processed to form the fissure-plane of roughness identical with self-open by finishing impression lathe.
Beneficial effect of the present invention: crack rock two-phase flow visual experimental apparatus of the present invention, by the transport property of liquids and gases under monitoring different fluid pressure and under different crack rock roughness, and catch the interface Changing Pattern of liquid and gas by high-speed camera, thus provide data supporting for polyphasic flow in colliery broadwall, coal bed gas extraction, oil and gas exploitation and underground petroleum strategic reserve storehouse; Crack is arranged to more can exist with the real form of Fracture Networks by the rock cranny in simulating nature circle, avoid the limitation that Single fracture is studied, and by the structure of left block, right block and lower block combination seal cover, the sealing property of thing mould body can be ensured in experimentation, ensure the accuracy of experiment parameter, avoid thing mould body due to poorly sealed and cause experimental result inaccurate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of thing mould body in the present invention;
Fig. 3 is the structural representation of left block in the present invention;
Fig. 4 is the structural representation of sealing shroud in the present invention;
Fig. 5 is another structural representation of the present invention;
Fig. 6 is crack rock thing mould vertical view in the present invention;
Fig. 7 is crack rock thing mould front view in the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is the structural representation of thing mould body in the present invention, Fig. 3 is the structural representation of left block in the present invention, Fig. 4 is the structural representation of sealing shroud in the present invention, Fig. 5 is another structural representation of the present invention, Fig. 6 is crack rock thing mould vertical view in the present invention, Fig. 7 is crack rock thing mould front view in the present invention, as shown in the figure: the crack rock two-phase flow visual experimental apparatus of the present embodiment, comprise two-phase flow feed system, crack rock thing mould, monitoring system, described two-phase flow feed system is crack rock thing mould supply two-phase flow, described crack rock thing mould is prepared from by transparent material, described monitoring system at least comprises the high-speed camera 9 can monitored two-phase flow interface, two-phase flow feed system comprises the gas supply device and the fluid Supplying apparatus that supply adjustable injection pressure to crack rock thing mould, described crack rock thing mould can have transparent epoxide resin material preparation, coarse fissure-plane is provided with in described crack rock thing mould, by the transport property of liquids and gases under monitoring different fluid pressure and under different crack rock roughness, and the interface Changing Pattern of liquid and gas is caught by high-speed camera 9, thus be colliery broadwall, coal bed gas extraction, in oil and gas exploitation and underground petroleum strategic reserve storehouse, polyphasic flow provides data supporting.
In the present embodiment, described crack rock thing mould comprises the thing mould body 1 of seal assembly and T-shaped structure, described thing mould body 1 comprises rock mass 11, lower-left rock mass 12 and bottom right rock mass 13 and is spliced to form the crack 14 of T-shaped structure, the crack 14 left wing end of T-shaped structure is the two-phase flow injection side in crack 14, the right flank end in crack 14 and lower end are the outflow end of two-phase flow, as shown in the figure, left end and right-hand member are as the left end in figure and right-hand member, two-phase flow injection side also can be arranged on right-hand member, left end is two-phase flow outflow end, all can realize the object of the invention, described lower-left rock mass 12 and bottom right rock mass 13 are inverted L-shaped, described seal assembly comprises the left block 21 being arranged at end, crack 14 respectively, right block 22 and lower block 23, described left block 21, right block 22 and lower block 23 are the epoxy resin block matched with crack rock thing mould end, described left block 21 is provided with the liquid injection hole 21a and injecting hole 21b that are communicated with crack 14 respectively, gas supply device seals with liquid injection hole 21a with injecting hole 21b respectively with the output terminal of liquid supplying apparatus and is communicated with, be convenient to inject two-phase fluid simultaneously, described right block 22 and lower block 23 are respectively arranged with the first flow-out hole and the second flow-out hole that are communicated with crack 14, described seal assembly also comprises the sealing shroud 3 for sealing thing mould body 1 sidewall, sealing shroud 3 comprises the left O-ring seal 31 being connected latasuture for sealing left block 21 with thing mould body 1, to be connected the right O-ring seal 32 of latasuture with thing mould body 1 for sealing right block 22, the lower seal 33 being connected latasuture for sealing lower block 23 with thing mould body 1 is oppositely arranged with two the T-shaped sealing strip 34 being connected latasuture for sealing model ontology, described sealing shroud 3 is high-strength rubber sealing boot 3 and can one-body moldedly arranges, crack 14 is arranged T-shaped structure more can to exist with the real form of crack 14 network by the rock cranny 14 in simulating nature circle, avoid the limitation that Single fracture 14 is studied, and by the structure of left block 21, right block 22 and lower block 23 combination seal cover 3, the sealing property of thing mould body 1 can be ensured in experimentation, ensure the accuracy of experiment parameter, avoid thing mould body 1 due to poorly sealed and cause experimental result inaccurate.
In the present embodiment, described crack rock thing mould also comprises stationary installation, described stationary installation comprises train wheel bridge assembly 41, lower plate assembly 42 and vertical cleat assembly, cleat assembly is used for compressing in the horizontal direction with right piece left block 21, described lower plate assembly 42 is for compressing in the horizontal direction lower-left rock mass 12 and bottom right rock mass 13, and described vertical cleat assembly 43 is for vertically compressing with lower block 23 upper rock mass 11; By the setting of stationary installation, can ensure that thing mould body 1 integrally has higher structural strength, the more important thing is and ensure that the width in crack 14 is stablized, be beneficial to the accuracy of experiment parameter.
In the present embodiment, described train wheel bridge assembly 41, lower plate assembly 42 and vertical cleat assembly 43 include two pieces of parallel clamping plate 4a, screw rod 4b that one end is in axial sliding connection through two clamping plates and with clamping plate of being oppositely arranged and the set nut 4c being arranged at screw rod end; The screw rod two ends of described lower plate assembly 42 are still provided with the horizontal spring 4d that can apply compression to corresponding clamping plate, and the screw rod upper end of described vertical cleat assembly 43 is provided with the uprighting spring 4e that can apply compression to corresponding clamping plate; In each assembly, screw rod is four and lays respectively at four corners of corresponding clamping plate, ensures clamping plate stable holding; Can ensure that the locking that set nut applies is moderate by horizontal spring 4d and uprighting spring 4e, avoid 14, crack because of stressed excessive and deformation distortion, have self-adjusting effect to each along rock mass position simultaneously.
In the present embodiment, described left block 21, right block 22 and lower block 23 and the end face that respective crack 14 end matches are provided with multiple parallel shunting groove 2a along the length direction of respective crack end, each end face is also provided with mainstream trench and mainstream trench is vertical and be communicated in shunting groove 2a, being communicated with injecting hole 21b with liquid injection hole 21a of described left block 21; Described right block 22 mainstream trench respective with lower block 23 is communicated with the second flow-out hole with the first flow-out hole respectively; By the setting of shunting groove 2a, ensure that two-phase flow evenly injects and flows out, avoid forming centrostigma at crack 14 end and causing not smooth, ensure that pressure survey is accurate.
In the present embodiment, the mainstream trench of described left block 21 comprises two the first mainstream trench 21c and the second mainstream trench 21d be parallel to each other, described injecting hole 21b and the first mainstream trench 21c, and described liquid injection hole 21a is communicated with the second mainstream trench 21d; Arrange gas and liquid relative distribution can be injected and Homogeneous phase mixing by the first mainstream trench 21c and the second mainstream trench 21d, ensure that liquids and gases evenly inject crack 14.
In the present embodiment, also comprise data handling system, described monitoring system also comprises the first pressure transducer 51 for detecting gas phase injection pressure, for detecting the second pressure transducer 52 of liquid phase injection pressure and bringing out the 3rd pressure transducer 53 of mouth pressure for detecting crack 14, described first pressure transducer 51, second pressure transducer 52 and the 3rd pressure transducer 53 can be arranged on corresponding delivery pipe; Detection signal is transferred to data handling system 6 by described first pressure transducer 51, second pressure transducer 52 and the 3rd pressure transducer 53; By the setting of pressure transducer, can measure the pressure differential that two-phase flow is imported and exported at thing mould body 1, and pressure parameter can be inputed to output processing system and process, described output processing system is computing machine and is configured with existing process software.
In the present embodiment, described monitoring system also comprises liquid phase stream amount detecting device and gas phase flow rate pick-up unit, and the two-phase flow that described crack rock thing mould flows out is successively by liquid phase stream amount detecting device and gas phase flow rate pick-up unit; Described liquid phase stream amount detecting device comprises the liquid storage bottle 72 of high-precision weighing meter 71 and sealing, two-phase flow is flow in liquid storage bottle 72 by delivery pipe and delivers the gas to gas phase flow rate pick-up unit (gas meter 8) by delivery pipe again, recorded the flow of liquids and gases by high-precision weighing meter 71 and gas meter, obtain comprehensive experimental data.
In the present embodiment, described two-phase flow feed system comprises gas cylinder 81 and liquid pressure pump, and the outlet side of described gas cylinder is communicated with injecting hole 21b, and described fluid pressure delivery side of pump is communicated with liquid injection hole 21a; The structure that described liquid pressure pump can adopt high-pressured air cylinder 82 to promote a piston 84 be arranged in cylinder body 83 liquid in cylinder body is forced out, structure is simple, with low cost, and pressure is easy to control.
In the present embodiment, crack rock thing mould is made up of transparent epoxide resin material, and described crack 14 is processed to form 14, the crack of roughness identical with self-open 14 by finishing impression lathe; First self-open 14 rock mass is gathered, by three-dimensional optical scanner by the digitizing of 14, crack, then 14, digitized crack is imported finishing impression lathe by computing machine, by finishing impression lathe, transparent epoxy resin is engraved as with the same uneven surface of self-open 14 rock mass, ensure that crack rock thing mould is closer to true crack 14 rock mass, ensures the accuracy of experiment.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a crack rock two-phase flow visual experimental apparatus, it is characterized in that: comprise two-phase flow feed system, crack rock thing mould, monitoring system, described two-phase flow feed system is crack rock thing mould supply two-phase flow, described crack rock thing mould is prepared from by transparent material, and described monitoring system at least comprises the high-speed camera can monitored two-phase flow interface.
2. crack rock two-phase flow visual experimental apparatus according to claim 1, it is characterized in that: described crack rock thing mould comprises the thing mould body of seal assembly and T-shaped structure, described thing mould body comprises rock mass, lower-left rock mass and bottom right rock mass and is spliced to form the crack of T-shaped structure, and described lower-left rock mass and bottom right rock mass are inverted L-shaped; Described seal assembly comprises the left block being arranged at end, crack respectively, right block and lower block, described left block is provided with the liquid injection hole and injecting hole that are communicated with crack respectively, described right block and lower block are respectively arranged with the first flow-out hole and the second flow-out hole that are communicated with crack, and described seal assembly also comprises the sealing shroud for sealing thing mould body sidewall.
3. crack rock two-phase flow visual experimental apparatus according to claim 2; it is characterized in that: described crack rock thing mould also comprises stationary installation; described stationary installation comprises train wheel bridge assembly, lower plate assembly and vertical cleat assembly; cleat assembly is used for compressing in the horizontal direction left block and right piece; described lower plate assembly is used for compressing in the horizontal direction lower-left rock mass and bottom right rock mass, and described vertical cleat assembly is used for vertically compressing upper rock mass and lower block.
4. crack rock two-phase flow visual experimental apparatus according to claim 3, is characterized in that: described train wheel bridge assembly, lower plate assembly and vertical cleat assembly include two pieces of parallel clamping plate, screw rod that one end is in axial sliding connection through two clamping plates and with clamping plate and set nuts of being arranged at screw rod end be oppositely arranged; The screw rod two ends of described lower plate assembly are still provided with the horizontal spring that can apply compression to corresponding clamping plate, and the screw rod upper end of described vertical cleat assembly is provided with the uprighting spring that can apply compression to corresponding clamping plate.
5. crack rock two-phase flow visual experimental apparatus according to claim 2, it is characterized in that: described left block, right block and lower block and the end face that respective crack end matches are provided with multiple parallel shunting groove along the length direction of respective crack end, each end face is also provided with mainstream trench and mainstream trench is vertical and be communicated in shunting groove, being communicated with injecting hole with liquid injection hole of described left block, described right block is communicated with the second flow-out hole with the first flow-out hole respectively with lower block mainstream trench separately.
6. crack rock two-phase flow visual experimental apparatus according to claim 5, it is characterized in that: the mainstream trench of described left block comprises two the first mainstream trench and the second mainstream trench be parallel to each other, described injecting hole and the first mainstream trench, described liquid injection hole is communicated with the second mainstream trench.
7. crack rock two-phase flow visual experimental apparatus according to claim 1, it is characterized in that: also comprise data handling system, described monitoring system also comprises the first pressure transducer for detecting gas phase injection pressure, for detecting the second pressure transducer of liquid phase injection pressure and bringing out the 3rd pressure transducer of mouth pressure for detecting crack; Detection signal is transferred to data handling system by described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
8. crack rock two-phase flow visual experimental apparatus according to claim 7, it is characterized in that: described monitoring system also comprises liquid phase stream amount detecting device and gas phase flow rate pick-up unit, the two-phase flow that described crack rock thing mould flows out is successively by liquid phase stream amount detecting device and gas phase flow rate pick-up unit.
9. crack rock two-phase flow visual experimental apparatus according to claim 2, it is characterized in that: described two-phase flow feed system comprises gas cylinder and liquid pressure pump, the outlet side of described gas cylinder is communicated with injecting hole, and described fluid pressure delivery side of pump is communicated with liquid injection hole.
10. crack rock two-phase flow visual experimental apparatus according to claim 2, it is characterized in that: crack rock thing mould is made up of transparent epoxide resin material, described crack is processed to form the fissure-plane of roughness identical with self-open by finishing impression lathe.
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| CN106645158A (en) * | 2017-02-28 | 2017-05-10 | 武汉大学 | Device for rock mass crack three-phase flow displacement dispersion capturing study and testing method |
| CN106680154A (en) * | 2017-02-28 | 2017-05-17 | 武汉大学 | Solute transport process optical measuring device based on rock joint transparent copy |
| CN106769758A (en) * | 2016-12-07 | 2017-05-31 | 河海大学 | A kind of prismatical joint Seepage of Rock Masses experimental rig and preparation method |
| CN107084914A (en) * | 2017-06-09 | 2017-08-22 | 北京工业大学 | A kind of Fracture Networks two phase flow experimental provision and method |
| CN108333098A (en) * | 2018-05-03 | 2018-07-27 | 西南石油大学 | Shale gas reservoir micro-fractures high-temperature and high-pressure visual air water two phase fluid flow experimental provision |
| CN110186813A (en) * | 2019-05-09 | 2019-08-30 | 西南石油大学 | The dynamic characteristic test macro and test method of pulverized coal group under the conditions of a kind of crack |
| CN112098274A (en) * | 2020-08-21 | 2020-12-18 | 山东科技大学 | Visual coal seam water injection two-phase seepage experiment system and method |
| CN112362298A (en) * | 2020-10-30 | 2021-02-12 | 上海应用技术大学 | Gas phase flow field simulation device with variable boundary conditions |
| CN113092059A (en) * | 2021-03-26 | 2021-07-09 | 武汉大学 | Device and method for rock fracture erosion-two-phase flow coupling experiment |
| LU500448A1 (en) * | 2020-07-21 | 2022-01-20 | Univ China Mining | Device and method for shear and two-phase flow test of fracture network |
| CN114324121A (en) * | 2022-03-16 | 2022-04-12 | 中国矿业大学(北京) | Visual teaching system for seepage heat exchange of fractured rock mass |
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| CN106769758A (en) * | 2016-12-07 | 2017-05-31 | 河海大学 | A kind of prismatical joint Seepage of Rock Masses experimental rig and preparation method |
| CN106645158A (en) * | 2017-02-28 | 2017-05-10 | 武汉大学 | Device for rock mass crack three-phase flow displacement dispersion capturing study and testing method |
| CN106680154A (en) * | 2017-02-28 | 2017-05-17 | 武汉大学 | Solute transport process optical measuring device based on rock joint transparent copy |
| CN106680154B (en) * | 2017-02-28 | 2023-10-31 | 武汉大学 | Solute migration process optical measurement device based on rock joint transparent replica |
| CN107084914B (en) * | 2017-06-09 | 2019-10-15 | 北京工业大学 | A kind of Fracture Networks two phase flow experimental provision and method |
| CN107084914A (en) * | 2017-06-09 | 2017-08-22 | 北京工业大学 | A kind of Fracture Networks two phase flow experimental provision and method |
| CN108333098A (en) * | 2018-05-03 | 2018-07-27 | 西南石油大学 | Shale gas reservoir micro-fractures high-temperature and high-pressure visual air water two phase fluid flow experimental provision |
| CN108333098B (en) * | 2018-05-03 | 2023-12-01 | 西南石油大学 | Shale gas reservoir microcrack high-temperature high-pressure visual gas-water two-phase seepage experimental device |
| CN110186813A (en) * | 2019-05-09 | 2019-08-30 | 西南石油大学 | The dynamic characteristic test macro and test method of pulverized coal group under the conditions of a kind of crack |
| LU500448A1 (en) * | 2020-07-21 | 2022-01-20 | Univ China Mining | Device and method for shear and two-phase flow test of fracture network |
| CN112098274A (en) * | 2020-08-21 | 2020-12-18 | 山东科技大学 | Visual coal seam water injection two-phase seepage experiment system and method |
| CN112362298A (en) * | 2020-10-30 | 2021-02-12 | 上海应用技术大学 | Gas phase flow field simulation device with variable boundary conditions |
| CN113092059A (en) * | 2021-03-26 | 2021-07-09 | 武汉大学 | Device and method for rock fracture erosion-two-phase flow coupling experiment |
| CN114324121A (en) * | 2022-03-16 | 2022-04-12 | 中国矿业大学(北京) | Visual teaching system for seepage heat exchange of fractured rock mass |
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