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Direct Numerical Simulation of a Turbulent Boundary Layer on a Flat Plate Using Synthetic Turbulence Generation

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arxiv 2010.04277 v2 pith:XTSTRRRU submitted 2020-10-08 physics.flu-dyn

James R. Wright , Riccardo Balin , John W. Patterson , John A. Evans , Kenneth E. Jansen This is my paper · ORCID
classification physics.flu-dyn
keywords boundarylayerturbulenceconditiondevelopmentdirectdownstreamflat
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The turbulent boundary layer over a flat plate is computed by direct numerical simulation (DNS) of the incompressible Navier-Stokes equations as a test bed for a synthetic turbulence generator (STG) inflow boundary condition. The inlet momentum thickness Reynolds number is approximately 1,000. The study provides validation of the ability of the STG to develop accurate turbulence in 5 to 7 boundary layer thicknesses downstream of the boundary condition. Also tested was the effect of changes in the stabilization scheme on the development of the boundary layer. Moreover, the grid resolution required for both the development region and the downstream flow is investigated when using a stabilized finite element method.

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