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A 3-D numerical model for calculating flow in non-curvilinear coordinates was established in this article. The flow was simulated by solving the full Reynolds-averaged Navier-Stokes equations with the RNG κ–ɛ turbulence model. In the horizontal x–y-plane, a boundary-fitted curvilinear co-ordinate system was adopted, while in the vertical direction, a σco-ordinate transformation was used to represent...
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