Simple and robust cut-cell method for high-reynolds-number-flow simulation on cartesian grids

Motoshi Harada, Yoshiharu Tamaki, Yuichi Takahashi, Taro Imamura

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The grid-convergence behaviors and accuracy of the cut-cell method in viscous flows are investigated n a study. To mitigate the complexity of grid-generation methods, a simplified cut-cell method for high-Reynolds-number flow simulation is proposed for Cartesian grids. The small or split cells that often appear in the cut-cell method are eliminated by a simple projection strategy that conserves the original Cartesian grid’s data structure. To validate the accuracy of the solutions obtained by the new method, the simplified cut-cell method and IBM are compared directly on the same computational fluid dynamics (CFD) solver. Compressible laminar and turbulent flows are solved. In particular, a wall function is combined with the two methods to reduce the computational costs in turbulence calculations.

Original languageEnglish
Pages (from-to)2833-2841
Number of pages9
JournalAIAA journal
Volume55
Issue number8
DOIs
Publication statusPublished - 2017
Externally publishedYes

ASJC Scopus subject areas

  • Aerospace Engineering

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