Simulations of a Falling Sphere in a Long Bending Pipe with Trans-Mesh Method and Moving Computational Domain Method

• ASAO Shinichi

  Department of Mechanical Engineering, College of Industrial Technology

• MATSUNO Kenichi

  Department of Mechanical System Engineering, Kyoto Institute of Technology

• YAMAKAWA Masashi

  Department of Mechanical System Engineering, Kyoto Institute of Technology

抄録

In this paper, two moving mesh methods are introduced. One is a Trans-mesh method and the other is a Moving Computational Domain method. In the Trans-mesh method, the bodies can move freely in a main mesh that covers the entire flow field. On the other hand, in the Moving Computational Domain method, the whole of the computational domain including bodies inside moves in the physical space without the limit of region size. These methods are constructed based on the four-dimensional control volume in space-time unified domain such that the method assures to be divergence-free in the space-time unified domain and thus satisfies both the physical and geometrical conservation laws simultaneously. The methods are applied to a falling sphere by gravity in an infinite long straight pipe and an infinite long bending pipe. The results indicate that these methods are promising in simulating the interaction of incompressible fluid-rigid body with collisions.

収録刊行物

• Journal of Computational Science and Technology

  Journal of Computational Science and Technology 7 (2), 297-305, 2013

  一般社団法人 日本機械学会

キーワード

• Numerical Method
• Incompressible Flow
• Moving Mesh
• Finite Volume Method
• Interaction Simulation

詳細情報

• CRID: 1390001205275414400
• NII論文ID: 130003368089
• DOI: 10.1299/jcst.7.297
• ISSN: 18816894
• Web Site: https://www.jstage.jst.go.jp/article/jcst/7/2/7_297/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可