2011 Fiscal Year Final Research Report
Study on a Boltzmann/Navier-Stokes hybrid solver for multi-physics, multi-scale flow problems.
| Project/Area Number |
21560176
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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 |
Fluid engineering
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
MORINISHI Koji 京都工芸繊維大学, 工芸科学研究科, 教授 (20174443)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 流体工学 / シミュレーション工学 / マルチスケール / マルチフィジックス |
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| Research Abstract |
In order to apply the Boltzmann/Navier-Stoke hybrid solver, which had already been developed, to multi-physics flow problems, a virtual flux method is incorporated in the Navier-Stokes solver so that fluid-solid interaction problems can be solved on a Cartesian grid. The reliability of the solver is examined in the numerical simulation about a reciprocating compressor. The obtained numerical results are in good agreement with experiments. For the Boltzmann solver, a novel moment base Boltzmann method is developed to save the necessary computational memory. The moment base Boltzmann method is efficient, especially for applying it to multi-physics problems, such as two-phase flow problems.
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