2010 Fiscal Year Final Research Report
Numerical and analytical studies on gas flows caused by the phase transition
| Project/Area Number |
19560066
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Engineering fundamentals
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| Research Institution | Kyoto University |
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Principal Investigator |
TAKATA Shigeru Kyoto University, 大学院・工学研究科, 准教授 (60271011)
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| Project Period (FY) |
2007 – 2010
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| Keywords | ボルツマン方程式 / 相変化 / 膨張波 / 対称性 / 相反性 |
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| Research Abstract |
We investigated the unsteady one-dimensional gas flows caused by a phase transition on the basis of the kinetic theory of gases. Main results are as follows. (1) Starting from the investigation of kinetic boundary-layer, we established a general theory of reciprocity for linearized problems. (2) We showed that from a certain class of initial states there occur two expansion waves traveling in the direction opposite to each other, which are separated by a highly rarefied region that evolves into a vacuum. This region is highly non-equilibrium and the temperature is strongly non-isotropic.
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