Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture
The seepage of gas-liquid two-phase flow in fracture is a commonly found phenomenon in nature. To reveal the underlying mechanism and the critical condition of the chaos occurrence, a stochastic gas-liquid two-phase flow seepage model is established, and then investigated through a numerical simulat...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2020/8860058 |
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| _version_ | 1849467731896696832 |
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| author | Dong Yang Zhiqin Kang Yangsheng Zhao |
| author_facet | Dong Yang Zhiqin Kang Yangsheng Zhao |
| author_sort | Dong Yang |
| collection | DOAJ |
| description | The seepage of gas-liquid two-phase flow in fracture is a commonly found phenomenon in nature. To reveal the underlying mechanism and the critical condition of the chaos occurrence, a stochastic gas-liquid two-phase flow seepage model is established, and then investigated through a numerical simulation and a horizontal Hele-Shaw experiment. The numerical simulation and laboratory experiment results show that the seepage chaos of gas-liquid two-phase flow takes place when the relative saturation is in the range of gas relative saturation 44%-70%, and the occurrence probability can be expressed in polynomials. The chaos probability exceeds 80% when the relative saturation of gas is 47%-65%, and the chaos probability is 100% when the relative gas saturation is 57%-60%. It is found that the stochastic variation of gas connection cluster and the compressibility of gas lead to a remarkable change of pressure gradient of the gas-liquid flow both in magnitude and direction. Therefore, the turbulent flow is formed, the kinetic energy of fluid transport decreases gradually, and the flow is stopped at last. |
| format | Article |
| id | doaj-art-e066f695b7f141cd8cdc8ca1ab71e98d |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-e066f695b7f141cd8cdc8ca1ab71e98d2025-08-20T03:26:05ZengWileyGeofluids1468-81151468-81232020-01-01202010.1155/2020/88600588860058Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single FractureDong Yang0Zhiqin Kang1Yangsheng Zhao2Key Lab of In-Situ Property-improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, ChinaKey Lab of In-Situ Property-improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, ChinaKey Lab of In-Situ Property-improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, ChinaThe seepage of gas-liquid two-phase flow in fracture is a commonly found phenomenon in nature. To reveal the underlying mechanism and the critical condition of the chaos occurrence, a stochastic gas-liquid two-phase flow seepage model is established, and then investigated through a numerical simulation and a horizontal Hele-Shaw experiment. The numerical simulation and laboratory experiment results show that the seepage chaos of gas-liquid two-phase flow takes place when the relative saturation is in the range of gas relative saturation 44%-70%, and the occurrence probability can be expressed in polynomials. The chaos probability exceeds 80% when the relative saturation of gas is 47%-65%, and the chaos probability is 100% when the relative gas saturation is 57%-60%. It is found that the stochastic variation of gas connection cluster and the compressibility of gas lead to a remarkable change of pressure gradient of the gas-liquid flow both in magnitude and direction. Therefore, the turbulent flow is formed, the kinetic energy of fluid transport decreases gradually, and the flow is stopped at last.http://dx.doi.org/10.1155/2020/8860058 |
| spellingShingle | Dong Yang Zhiqin Kang Yangsheng Zhao Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture Geofluids |
| title | Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture |
| title_full | Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture |
| title_fullStr | Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture |
| title_full_unstemmed | Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture |
| title_short | Mechanism of the Gas-Liquid Two-Phase Chaotic Flow in Single Fracture |
| title_sort | mechanism of the gas liquid two phase chaotic flow in single fracture |
| url | http://dx.doi.org/10.1155/2020/8860058 |
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