Abstract
ABSTRACT We consider the numerical solution on unstructured dynamic meshes of the averaged Navier-Stockes equations equipped with the κ-e turbulence model and a wall function. We discuss discretization issues pertaining to moving grids and numerical dissipation, and present a robust spring analogy method for constructing dynamic meshes. We validate our implementation of this two-equation turbulence model and justify its usage for a class of vortex shedding problems by correlating our computational results with experimental data obtained for a flow past a square cylinder. We also apply our solution methodology to the two- dimensional aerodynamic stability analysis of the Tacoma Narrows Bridge, and report numerical results that are in good agreement with observed data.
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