A finite difference method is developed to predict turbulent flows over 3D bluffbodies. The K-ε turbulence model with Launder and Spalding's wall treatment isemployed. The solution alsorithm is based on a body fi...A finite difference method is developed to predict turbulent flows over 3D bluffbodies. The K-ε turbulence model with Launder and Spalding's wall treatment isemployed. The solution alsorithm is based on a body fitted nonorthogonalcurvilinear eourdinate system and a stagsered grid arrangement. The covariantvelocity components are chosen as dependent variables. Convective fluxes aredescribed by the Power haw Scheme. The grids are generated with an ellipticgrid generator using control functions. Results obtained are compared withexporiment measurements and other calculations.展开更多
文摘A finite difference method is developed to predict turbulent flows over 3D bluffbodies. The K-ε turbulence model with Launder and Spalding's wall treatment isemployed. The solution alsorithm is based on a body fitted nonorthogonalcurvilinear eourdinate system and a stagsered grid arrangement. The covariantvelocity components are chosen as dependent variables. Convective fluxes aredescribed by the Power haw Scheme. The grids are generated with an ellipticgrid generator using control functions. Results obtained are compared withexporiment measurements and other calculations.
