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http://dx.doi.org/10.6112/kscfe.2011.16.3.022

EFFECTS OF INFLOW ANGLE ON LAMINAR FLOW PAST A TRIANGULAR CYLINDER  

Park, Tse-Seon (경북대학교 기계공학부)
Publication Information
Journal of computational fluids engineering / v.16, no.3, 2011 , pp. 22-28 More about this Journal
Abstract
Laminar Flow over an equilateral triangular cylinder is studied for several inflow angles. Under an uniform flow of $Re_d$=50,75,100,125,150, the triangular cylinder is rotated by ${\theta}$=$0^{\circ}$,$15^{\circ}$,$30^{\circ}$,$45^{\circ}$,$60^{\circ}$,$75^{\circ}$,$90^{\circ}$,$105^{\circ}$. The governing equations are solved by the PISO algorithm based on the finite volume method of the unstructured grid system. The effects of the inflow angle on the vortex-shedding flows are investigated. The Strouhal number shows a minimum at ${\theta}$=$60^{\circ}$. It is closely related to the variation of pressure and flow structure induced by the movement of separation points.
Keywords
Triangular Cylinder; Strouhal number; Inflow Angle;
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