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Turbulence and Shear Flow Phenomena -1 First International Symposium

ISBN Print: 1-56700-135-1

LARGE EDDY SIMULATION OF THE INFLUENCE OF HIGH FREE-STREAM TURBULENCE ON SPATIALLY EVOLVING BOUNDARY LAYER

Abstract

The influence of a high free-stream turbulent field on a spatially evolving turbulent flat plate boundary layer is investigated using a Large Eddy Simulation (LES) with a dynamic mixed subgrid-scale model. The evolution of skin friction, heat transfer coefficient, flow and thermal field are presented. The impact of free-stream turbulence on shear stress and velocity profiles is minimal; whereas substantial heat transfer augmentations are predicted together with a modification of the temperature profiles in the logarithmic and wake regions.
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