Volume 9: 6th FSI, AE and FIV and N Symposium 2006
DOI: 10.1115/pvp2006-icpvt-11-93874
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Wavelet Analysis of Flow-Induced Forces on Two Side-by-Side Stationary Cylinders: Reynolds Number Effect

Abstract: In the present study, the effect of Reynolds number (Re) on flow interference between two side-by-side stationary cylinders and the associated flow-induced forces are investigated using a finite element method. The pitch ratio chosen is T/D = 1.7, and Re is varied within the range of laminar flow regime, i.e., 60 < Re < 200. The method of continuous wavelet transform is used to analyze flow-induced forces, especially their time-variant features. Flow patterns in the form of vorticity plot are pre… Show more

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“…Similar to circular cylinders, increment in drag coefficient on a pair of square cylinders in a side-by-side arrangement was observed with a decrease in transverse spacing between the cylinders [24]. The pressure distributions on two cylinders with triangular cross section in a side-by-side arrangement have also been shown to experience asymmetric drag coefficients as a function of transverse distance between the cylinders [25]. Half-span models of cylinder pairs in a flow field were also shown to exhibit similar wake asymmetry characteristics with a slight suppression of vortex shedding from the cylinder surface by the trailing vortex emanating from the free end [26].…”
Section: Aerodynamic Interactions Between Bluff Bodiesmentioning
confidence: 99%
“…Similar to circular cylinders, increment in drag coefficient on a pair of square cylinders in a side-by-side arrangement was observed with a decrease in transverse spacing between the cylinders [24]. The pressure distributions on two cylinders with triangular cross section in a side-by-side arrangement have also been shown to experience asymmetric drag coefficients as a function of transverse distance between the cylinders [25]. Half-span models of cylinder pairs in a flow field were also shown to exhibit similar wake asymmetry characteristics with a slight suppression of vortex shedding from the cylinder surface by the trailing vortex emanating from the free end [26].…”
Section: Aerodynamic Interactions Between Bluff Bodiesmentioning
confidence: 99%