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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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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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 / 気体分子運動論 / 分子気体力学 / 真空 / エントロピー生成 |
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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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Report
(6 results)
Research Products
(39 results)
