Journal
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
Volume 54, Issue 9, Pages 890-913Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10407780802424361
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- Fluent-ANSYS India
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A numerical investigation of flow and heat transfer around a square cylinder at incidence (alpha=0 degrees-45 degrees) is presented for a range of Reynolds numbers ( Re=60-150). A finite-volume code suitable for unstructured grids has been developed to simulate the flow. The unstructured grid has been generated using the Delaunay triangulation algorithm. A modified pressure-velocity correction scheme with semi-explicit time-stepping is implemented to solve the Navier-Stokes equations. Collocated grid arrangement has been used for the dependent variables. Convective terms have been discretized using a second order upwind least squares scheme. The formation of Karman vortex street has been captured and the Strouhal number associated with the wake has been determined. The dependence of Strouhal number, force coefficients (drag and lift), moment coefficient and average Nusselt number on Reynolds number, and angle of incidence for a fixed blockage ratio has been reported and analyzed.
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