Numerical method for vapor-liquid two phase flows based on kinetic theory of gases and development of interfacial dynamics
| Project/Area Number |
25820038
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 気体論境界条件 / 蒸発・凝縮 / 気液界面 / Boltzmann方程式 / Enskog-Vlasov方程式 / 気体分子運動論 / 分子気体力学 / 蒸発係数 / 凝縮係数 |
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| Outline of Final Research Achievements |
The aim of this study is to determine the kinetic boundary condition for the Boltzmann equation at a vapor-liquid interface during net evaporation or condensation. By using the constructed kinetic boundary conditions in the present study, we simulate vapor-liquid two-phase flows with net evaporation or condensation, e.g., cavitation bubble collapse with phase change. From this results, we shows that the kinetic boundary conditions at vapor-liquid interfaces during net evaporation and condensation are the functions of liquid temperature based on the numerical analysis of the Enskog-Vlasov equation (Enskog-DSMC method). Furthermore, we propose the boundary condition for the fluid-dynamic-type equations at a vapor-liquid interface during net evaporation and condensation.
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Report
(4 results)
Research Products
(20 results)
