Abstract
Flows of engineering interest which have been investigated with the large eddy simulation (LES) technique are discussed. Using this technique the filtered Navier-Stokes equations are solved to simulate the three-dimensional unsteady motion. Not only the statistically-averaged fields, but in addition, the spatial and temporal variations in the flow fields can be examined. Grids are equidistant in the three coordinate directions and typically consist of 150,000 to 200,000 mesh cells. Examples of flows include the turbulent boundary layer with a sudden change in the freestream pressure gradient and the separating and reattaching flow behind a rearward-facing step. Results which illustrate the large-scale structure of these two high Reynolds number turbulent flows are discussed in the present paper.
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Friedrich, R., Arnal, M. & Unger, F. Large eddy simulation of turbulence in engineering applications. Appl. Sci. Res. 48, 437–445 (1991). https://doi.org/10.1007/BF02008208
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DOI: https://doi.org/10.1007/BF02008208