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Large eddy simulation of the influence of high free-stream turbulence on a spatially evolving boundary layer

✍ Scribed by Frédéric Péneau; Henri Claude Boisson; Ned Djilali

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 562 KB
Volume: 21
Category: Article
ISSN: 0142-727X
DOI: 10.1016/s0142-727x(00)00055-2

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✦ Synopsis

The in¯uence of a high free-stream turbulent ®eld on a spatially evolving turbulent ¯at plate boundary layer is investigated using large eddy simulation (LES) with a dynamic mixed subgrid-scale model. The evolutions of skin friction, heat transfer coecient, and ¯ow and thermal ®eld are presented and analyzed. The impact of free-stream turbulence on shear stress and velocity pro®les is minimal, whereas substantial heat transfer augmentation is predicted together with a modi®cation of the temperature pro®les in the logarithmic and wake regions.

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