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

Choi, C.B. (인하대학교 대학원 기계공학과)
Jang, Y.J. (한국철도기술연구원)
Yoon, D.H. (인하대학교 대학원 기계공학과)
Yang, K.S. (인하대학교 기계공학과)
Publication Information
Journal of computational fluids engineering / v.15, no.2, 2010 , pp. 62-70 More about this Journal
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
Floquet stability analysis; square cylinder; side-by-side arrangements;
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