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- 瀬田 剛
- 富山大
書誌事項
- タイトル別名
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- 1602 Compressible Flow Simulation Using the Lattice Boltzmann Equation for Spatial Derivative of Distribution Function
説明
Spatial derivative of the distribution function follows the lattice Boltzmann equation (LBE), because the advection term in the kinetic equation is linear in the lattice Boltzmann method (LBM). The Cubic Interpolated Propagation Method is employed to discretize the kinetic equation for spatial derivative. We investigate the approximation accuracy of the LBE with the CIP method by simulations of shock tube problems of Sod and of Lax. The simulation results of the shock tube problems reveal that the CIP method is applicable to the LBE for compressible flow, and the differentiations of fluid density, velocity, and energy are able to be calculated by a simple arithmetic calculation of the spatial derivative of the distribution function. Because the numerical diffusion of the LBE with the CIP method is larger than that of the conventional LBM, the CIP method suppresses the numerical oscillations in the vicinity of sharp discontinuities in the simulations of the shock tube.
収録刊行物
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- 年次大会講演論文集
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年次大会講演論文集 2007.2 (0), 215-216, 2007
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001206065398912
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- NII論文ID
- 110007085848
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- ISSN
- 24331325
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可