Study on a Boltzmann/Navier-Stokes hybrid solver for multi-physics, multi-scale flow problems.

针对多物理、多尺度流动问题的玻尔兹曼/纳维-斯托克斯混合求解器的研究。

• 批准号: 21560176
• 负责人: MORINISHI Koji
• 金额: $ 2.75万
• 依托单位: Kyoto Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560176/
• 关键词: 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

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.

为了将已经开发的Boltzmann/Navier-Stokes混合求解器应用于多物理场流动问题，在Navier-Stokes求解器中引入了虚拟通量法，使得流固耦合问题可以在笛卡尔网格上求解。通过对往复式压缩机的数值模拟，验证了该方法的可靠性。数值计算结果与实验结果吻合较好。对于玻尔兹曼求解器，一个新的矩基玻尔兹曼方法的开发，以节省必要的计算内存。矩基Boltzmann方法是一种有效的方法，特别是对于多物理场问题，如两相流问题。

项目成果

Fluid-structure coupling simulations using a virtual flux Method

使用虚拟通量方法进行流固耦合模拟

• 发表时间: 2010
• 作者: 浅尾慎一;松野謙一;K. Morinishi;K. Morinishi
• 通讯作者: K. Morinishi

Moment base lattice Boltzmann approach for incompressible two-phase flows with large density ratio

大密度比不可压缩两相流的矩基格子玻尔兹曼方法

• 发表时间: 2012
• 作者: I. Tanno;T. Hashimoto;T. Yasuda;Y. Tanaka;K. Morinishi;N. Satofuka;Koji Morinishi;Koji Morinishi;Koji Morinishi;Koji Morinishi;Koji Morinishi
• 通讯作者: Koji Morinishi

Calculation by artificial compressibility method and virtual flux method on GPU

• DOI: 10.1016/j.compfluid.2011.02.005
• 发表时间: 2011-06
• 期刊: Computers & Fluids
• 影响因子: 2.8
• 作者: I. Tanno;K. Morinishi;N. Satofuka;Y. Watanabe

Fluid-structure coupling simulations using a virtual flux method.

使用虚拟通量方法进行流固耦合模拟。

• 发表时间: 2010
• 期刊: ECCOMAS CFD 2010
• 作者: K.Morinishi;T.Fukui
• 通讯作者: T.Fukui

Moment Base Lattice Boltzmann Approach for Multiphysics Flow Problems

用于解决多物理场流动问题的矩基格子玻尔兹曼方法

• 发表时间: 2012
• 作者: I. Tanno;T. Hashimoto;T. Yasuda;Y. Tanaka;K. Morinishi;N. Satofuka;Koji Morinishi;Koji Morinishi;Koji Morinishi;Koji Morinishi
• 通讯作者: Koji Morinishi