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First Symposium on Turbulence and Shear Flow Phenomena
September, 12-15, 1999, Doubletree Resort, Santa Barbara, California, USA

DOI: 10.1615/TSFP1

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

pages 685-690
DOI: 10.1615/TSFP1.1100
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摘要

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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