Study of Solid-Fluid Interaction in Body-Fixed Non-Inertial Frame of Reference
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- TAKEUCHI Shintaro
- Department of Mechanical Engineering, Osaka University
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- YAMAZAKI Takahiro
- Department of Mechanical Engineering, Osaka University Present Affiliation: YAMAHA MOTOR CO., LTD.
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- KAJISHIMA Takeo
- Department of Mechanical Engineering, Osaka University
抄録
Motion of solid object in fluid is studied in moving frame of reference. Navier-Stokes (N-S) equations in a non-inertial frame of reference is coupled with the equations of linear and angular momentums for the solid object. It is shown that the numerical implementation for solving the non-inertial N-S equations is equivalent to that of the arbitrary Lagrangian-Eulerian (ALE) method. The simulation results by the two methods show reasonable agreements for a 2-D flow field including a cylinder. In the present work, a generalised convective boundary condition is constructed for non-inertial frame of reference. Also, an appropriate boundary condition is proposed for fluid phase based on a least square adjustment (LSA) method. It is shown that the LSA is essential for the non-inertial study fluid-solid interaction. Also, the non-inertial N-S equation is applied to a problem of a concave object falling in a fluid. It is shown that traditional time-advancement schemes undermine the ortho-normality of the rotation matrix, resulting in non-physical deformation of the object. However, our time-advancement procedure with quaternion is found to be robust and effective even under a violent manoeuvre of the object.
収録刊行物
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- Journal of Fluid Science and Technology
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Journal of Fluid Science and Technology 1 (1), 1-11, 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
- 1390001205246711424
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- NII論文ID
- 130000077028
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- DOI
- 10.1299/jfst.1.1
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- ISSN
- 18805558
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可