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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-483-0

ISBN Online: 978-1-56700-482-3

4th Thermal and Fluids Engineering Conference
April, 14–17, 2019 , Las Vegas, NV, USA

EVALUATION OF CFD ALGORITHMS FOR SOLVING A CANONICAL PROBLEM OF FLOW OVER A SQUARE CYLINDER

Get access (open in a dialog) pages 451-454
DOI: 10.1615/TFEC2019.cmd.029015

Abstract

Defining and quantifying the flow over two-dimensional objects has long been studied by the scientific community, where both experimentation and numerical simulations have been used. It is surprising that the work on the square shape has left some issues which remain unsettled. Here, numerical simulation is used to explore this problem and a large number of CFD algorithms are employed. Included among this list are commonly used two-equation models, a new model that accounts for transition between laminar and turbulent flow, and Reynolds Stress Models. Among the issues studied are variation of the drag coefficients with Reynolds numbers, and the impact of upstream conditions on the flow. Also, the effect of blockage is investigated (when a solid object is placed within a confined flow, such as a wind tunnel). The best performing model is identified and utilized.