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

2020/10/08 by James R. Wright, Riccardo Balin, Wright, James R. +8 · 2 citations
Engineering · Environmental Science · Mathematics · Physics and Astronomy · #Boundary (topology) #Boundary layer #Boundary layer thickness #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fluid Dynamics and Turbulent Flows #Geology #Geometry #Mathematical analysis #Mathematics #Mechanics #Particle Dynamics in Fluid Flows #Physics #Turbulence #Wind and Air Flow Studies #physics.flu-dyn

paper · pdf · doi:10.48550/arxiv.2010.04277

published in arXiv (Cornell University) (Cornell University)

openalex publication_date 2020/10/08 · openalex created_date 2020/10/15 · arxiv created 2021/02/12 · arxiv updated 2021/02/15 · openalex updated_date 2026/07/28

Abstract

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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