Simulation of multiple spheres falling in a liquid-filled tube

A. A. Johnson, T. E. Tezduyar*

*この研究の対応する著者

研究成果: Article査読

218 被引用数 (Scopus)

抄録

A new 3D finite element flow simulation capability for fluid-particle interactions is presented and applied to study time-dependent behavior of multiple spheres falling in a liquid-filled tube. This capability is based on the flow simulation strategies such as stabilized space-time formulation for moving boundaries and interfaces, automatic mesh generation with structured layers of elements around the spheres, automatic mesh moving with remesh only as needed, and the implementation of these strategies on massively parallel computing platforms. Several cases of multiple spheres falling in a liquid-filled tube are studied, with the number of spheres ranging from two to five. In all cases, depending on the number of spheres and their initial arrangement, a stable state is eventually reached with all spheres arranged in a pattern corresponding to that stable state, and with all of them falling with the same terminal velocity.

本文言語English
ページ(範囲)351-373
ページ数23
ジャーナルComputer Methods in Applied Mechanics and Engineering
134
3-4
DOI
出版ステータスPublished - 1996 8月
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 材料力学
  • 機械工学
  • 物理学および天文学(全般)
  • コンピュータ サイエンスの応用

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