Space–time interface-tracking with topology change (ST-TC)

Kenji Takizawa, Tayfun E. Tezduyar*, Austin Buscher, Shohei Asada

*この研究の対応する著者

研究成果: Article査読

99 被引用数 (Scopus)

抄録

To address the computational challenges associated with contact between moving interfaces, such as those in cardiovascular fluid–structure interaction (FSI), parachute FSI, and flapping-wing aerodynamics, we introduce a space–time (ST) interface-tracking method that can deal with topology change (TC). In cardiovascular FSI, our primary target is heart valves. The method is a new version of the deforming-spatial-domain/stabilized space–time (DSD/SST) method, and we call it ST-TC. It includes a master–slave system that maintains the connectivity of the “parent” mesh when there is contact between the moving interfaces. It is an efficient, practical alternative to using unstructured ST meshes, but without giving up on the accurate representation of the interface or consistent representation of the interface motion. We explain the method with conceptual examples and present 2D test computations with models representative of the classes of problems we are targeting.

本文言語English
ページ(範囲)955-971
ページ数17
ジャーナルComputational Mechanics
54
4
DOI
出版ステータスPublished - 2014 10月 1

ASJC Scopus subject areas

  • 計算力学
  • 海洋工学
  • 機械工学
  • 計算理論と計算数学
  • 計算数学
  • 応用数学

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