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Direct numerical simulation of equilibrium turbulent boundary layers (1985)

Leonard, A. ; Spalart, P. R.

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Publication Date: 2011-08-19

Description: This paper describes the simulation of turbulent boundary layers by direct numerical solution of the three-dimensional, time-dependent Navier-Stokes equations, using a spectral method. The flow is incompressible, with Re sub delta = 1000. The equations are written in the self-similar coordinate system and periodic streamwise and spanwise boundary conditions are imposed. A family of nine 'equilibrium' boundary layers, from the strongly accelerated 'sink' flow to Stratford's separating boundary layer is treated. Good general agreement with experiments is observed. The effects of pressure gradients on the structures and statistics, both in the wall and wake regions are discussed.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

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