First Symposium on Turbulence and Shear Flow Phenomena
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
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.