Abstract
The objective is to develop a high-resolution numerical scheme for calculating turbulent transonic flows past airfoils. The numerical scheme essentially combines a multigrid explicit finite volume time-marching scheme with a convective upwind split pressure (CUSP) scheme for controlling artificial dissipation, and convergence rate is further enhanced by using local time stepping and implicit residual smoothing. One- and two-equation turbulence models are incorporated into the numerical scheme to assess the ability of various turbulence models in the prediction of turbulent transonic flow over airfoils within the framework of the CUSP formulation of artificial dissipation. An implicit, factored, upwind-biased numerical scheme is used for the integration of the turbulence field equations. Transonic viscous flows around the RAE-2822 airfoil are computed using this scheme.
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