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성홍계,김성진,염효원,허준영 한국항공우주학회 2013 International Journal of Aeronautical and Space Sc Vol.14 No.4
An assessment of two-equation turbulence models, the low Reynolds k-ε and k-ω SST models, with the compressibilitycorrections proposed by Sarkar and Wilcox, has been performed. The compressibility models are evaluated by investigatingtransonic or supersonic flows, including the arc-bump, transonic diffuser, supersonic jet impingement, and unsteadysupersonic diffuser. A unified implicit finite volume scheme, consisting of mass, momentum, and energy conservationequations, is used, and the results are compared with experimental data. The model accuracy is found to depend strongly onthe flow separation behavior. An MPI (Message Passing Interface) parallel computing scheme is implemented.