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- 森西 晃嗣
- 京都工芸繊維大学工芸学部
書誌事項
- タイトル別名
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- Numerical Validation of Gridless Boltzmann Equation Solver
説明
This paper describes a numerical solver of the Boltzmann equation which is originally developed for micro scale flow simulations. The convection terms are evaluated with an upwind gridless method, while the collision term is evaluated using a kinetic model collision term which correctly resembles the lower 13 moments of the Boltzmann equation. Validation of the solveris carried out for a supersonic flow over a circular cylinder at a free stream Mach number of 2.0 and several Knudsen numbers from 0.01 to 1.0. The numerical results are compared with those of the direct simulation Monte Carlo (DSMC) method and those of the compressible Navier-Stokes equations with slip boundary conditions. The comparison indicates that the results of the present Boltzmann equation solver are in good agreement with those of the DSMC method for the whole range of Knudsen number considered and the predictions of the slip Navier-Stokes equations are adequate if the Knudsen number is less than 0.1.
収録刊行物
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- 日本機械学会論文集B編
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日本機械学会論文集B編 72 (716), 861-868, 2006
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
- 1390001206263173248
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- NII論文ID
- 130004225727
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- ISSN
- 18848346
- 03875016
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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