Space–Time method for flow computations with slip interfaces and topology changes (ST-SI-TC)

Kenji Takizawa, Tayfun E. Tezduyar, Shohei Asada, Takashi Kuraishi

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The Space–Time Variational Multiscale (ST-VMS) method was introduced to function as a moving-mesh method. It is the VMS version of the Deforming-Spatial-Domain/Stabilized ST (DSD/SST) method. It has reasonably good turbulence modeling features and serves as a core computational method. The ST Slip Interface (ST-SI) method was introduced to addresses the challenge involved in high-resolution representation of the boundary layers near spinning solid surfaces. The mesh covering a spinning solid surface spins with it and thus maintains the high-resolution representation near it. The ST-TC method was introduced for moving-mesh computation of flow problems with topology changes, such as contact between solid surfaces. It deals with the TC while maintaining high-resolution boundary layer representation near solid surfaces. The “ST-SI-TC” method we introduce here integrates the ST-SI and ST-TC methods in the ST-VMS framework. It enables accurate flow analysis when we have a spinning solid surface that is in contact with a solid surface. We present two test computations with the ST-SI-TC method, and they are both with models of flow around a rotating tire with road contact and prescribed deformation, one with a 2D model, and one with a 3D model.

Original languageEnglish
Pages (from-to)124-134
Number of pages11
JournalComputers and Fluids
Volume141
DOIs
Publication statusPublished - 2016 Dec 15

Keywords

  • Flow around a tire
  • Road contact
  • Space–Time Variational Multiscale method
  • ST Slip Interface method
  • ST Topology Change method
  • ST-SI
  • ST-SI-TC method
  • ST-TC
  • ST-VMS
  • Tire deformation

ASJC Scopus subject areas

  • Computer Science(all)
  • Engineering(all)

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