Direct numerical simulations of an adverse pressure gradient turbulent boundary layer on high performance computers

摘要

direct Numerical Simulations (DNS) of developing turbulent boundary layers have been performed using a Finite Volume method with a locally refined grid near the wall. In the case of a zero pressure gradient boundary layer it is shown that the use of local grid refinement saves a conssderable amount of computational resources. The method is then applied to an adverse pressrure gradient boundary layer. The comparison of the results with an experiment performed by Watmuff [10] shows that the method is well suited for strongly developing turbulent flows.