Abstract
Based on the standard k-ɛ turbulence model, a new compressible k-ɛ model considering the pressure expansion influence due to the compressibility of fluid is developed and applied to the simulation of 3D transonic turbulent flows in a nozzle and a cascade. The Reynolds averaged N-S equations in generalized curvilinear coordinates are solved with implementation of the new model. The high resolution TVD scheme is used to discretize the convective terms. The numerical results show that the compressible k-ɛ model behaves well in the simulation of transonic internal turbulent flows.
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