| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Instability in Two-Sided Thermocapillary-Buoyancy Convection with Interfacial Phase Change |
| Guo-Feng Xu1,2, Qiu-Sheng Liu1,2**, Jun Qin1,2, Zhi-Qiang Zhu1 |
1Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190
2University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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Guo-Feng Xu, Qiu-Sheng Liu, Jun Qin et al 2020 Chin. Phys. Lett. 37 014701 |
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Abstract A new model of two-phase thermocapillary-buoyancy convection with phase change at gas-liquid interface in an enclosed cavity subjected to a horizontal temperature gradient is proposed, rather than the previous one-sided model without phase change. We study the onset of multicellular convection and two modes of convective instability, and find four different flow regimes. Their transition map is compared with the non-phase-change condition. Our numerical results show the stabilizing effect of interfacial phase change on the thermocapillary-buoyancy convection.
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Received: 14 August 2019
Published: 23 December 2019
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| PACS: |
47.55.Ca
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(Gas/liquid flows)
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47.55.dm
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(Thermocapillary effects)
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47.20.Hw
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(Morphological instability; phase changes)
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47.55.P-
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(Buoyancy-driven flows; convection)
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| Fund: Supported by the National Natural Science Foundation of China (Grant Nos. 11532015 and U1738119), the China's Manned Space Program (TZ-1) and the Joint Project of CMSA-ESA Cooperation on Utilization in Space. |
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