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Simulations of curved turbulent boundary layersThe objective of this work is to develop a space-time accurate numerical method for the solution of incompressible Navier-Stokes equations in generalized coordinates. The resulting code is to be used for direct and large-eddy simulation of turbulence in complex geometries. In a previous paper, the system of Navier-Stokes equations in general curvilinear coordinates was solved by a second-order accurate finite-difference scheme. Satisfactory results were obtained for several flows in two and three dimensions. The system of Navier-Stokes for the fluxes are given in Orlandi (1989). The main deficiency of the numerical scheme was the large CPU time required for the solution of the Poisson equation for the 'pressure' field. The point SOR relaxation, in conjunction with a multigrid scheme, was used for the Poisson equation. In some cases, particularly with very fine grids, it was impossible to obtain a divergent-free flow. A preliminary attempt is made to compute the spatially evolving flow of Swearingen & Blackwelder. To reduce the streamwise distance, the inflow was at a distance x = 60 cm from the leading edge.
Document ID
19930074003
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Orlandi, Paolo
(Rome Univ. Italy)
Date Acquired
August 16, 2013
Publication Date
February 1, 1991
Publication Information
Publication: Annual Research Briefs, 1990
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
93N71450
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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