Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

TRANSITION IN THE FLOW PAST SIDE-BY-SIDE SQUARE CYLINDERS

수직방향으로 정렬된 정사각주 후류에서의 3차원 불안정성

  • 최준범 (인하대학교 대학원 기계공학과) ;
  • 장용준 (한국철도기술연구원) ;
  • 윤동혁 (인하대학교 대학원 기계공학과) ;
  • 양경수 (인하대학교 기계공학과)
  • Received : 2010.02.02
  • Accepted : 2010.04.16
  • Published : 2010.06.30
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Abstract

Secondary instability in the flow past two square cylinders in side-by-side arrangements is numerically studied by using a Floquet analysis. The distance between the neighboring faces of the two cylinders (G) is the key parameter which affects the secondary instability under consideration. In this paper, we present the critical Reynolds number for the secondary instability and the corresponding spanwise wave number of the most unstable (or least stable) wave for each G. Our results would shed light on a complete understanding of the onset of secondary instability in the presence of two side-by-side square cylinders.

Keywords

References

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