Large-Eddy Simulation of Turbulent Flow over an Axisymmetric Hill
نویسندگان
چکیده
Large-Eddy Simulation (LES) of high Reynolds number turbulent flow over an axisymmetric hill of height H = 2δ, where δ is the incoming turbulent boundary layer thickness, is presented in this paper. Surface mean pressure, flow visualization and mean velocity profiles are presented and compared with experiments. In general, good agreement is obtained for the surface mean pressure and axial flow profiles. Analysis of the results show that multiple separation and reattachments occur on the lee-side of the hill. These results are also consistent with experimental observations, although there are some differences. The flow field is further analyzed to understand the dynamics of the flow.
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