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Direct simulation of a turbulent oscillating boundary layer (1987)

Baldwin, Barrett S. ; Spalart, Philippe R.

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Publication Date: 2019-07-27

Description: The turbulent boundary layer driven by a freestream velocity that varies sinusoidally in time around a zero mean is considered. The flow has a rich behavior including strong pressure gradients, inflection points, and reversal. A theory for the velocity and stress profiles at high Reynolds number is formulated. Well-resolved direct Navier-Stokes simulations are conducted over a narrow range of Reynolds numbers, and the results are compared with the theoretical predictions. The flow is also computed over a wide range of Reynolds numbers using a new algebraic turbulence model; the results are compared with the direct simulations and the theory.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: Symposium on Turbulent Shear Flows; Sept. 7-9, 1987; Toulouse; France

Format: text

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