SOLUTIONS OF INVISCID AND VISCOUS FLOWS USING STRUCTURED HIGH RESOLUTION ALGORITHMS IN THREE-DIMENSIONS

摘要

The present work performs comparisons between the Yee, Warming and Harten and the Hughson and Beran algorithms in the solution of inviscid and laminar and turbulent viscous flows in three-dimensions. The Euler and the Navier-Stokes equations, on a finite volume context and using a structured spatial discretization, are solved. The algorithms are flux difference splitting type and a dimensional splitting method is used to perform time integration. The physical problem of the supersonic flow along a ramp is studied. Turbulence is taking into account considering two turbulence models, namely: the Cebeci and Smith and the Baldwin and Lomax algebraic ones. The results have demonstrated that the Hughson and Beran scheme yields more severe pressure fields, while the Yee, Warming and Harten scheme presents more accurate results.