Residual‐based artificial viscosity for simulation of turbulent compressible flow using adaptive finite element methods |
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Authors: | Murtazo Nazarov Johan Hoffman |
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Affiliation: | 1. Department of Mathematics, Texas A&M University 3368 TAMU, College Station, , TX 77843, USA;2. Computational Technology Laboratory, School of Computer Science and Communication, Royal Institute of Technology KTH, , SE‐10044 Stockholm, Sweden |
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Abstract: | In this paper, we present a finite element method with a residual‐based artificial viscosity for simulation of turbulent compressible flow, with adaptive mesh refinement based on a posteriori error estimation with sensitivity information from an associated dual problem. The artificial viscosity acts as a numerical stabilization, as shock capturing, and as turbulence capturing for large eddy simulation of turbulent flow. The adaptive method resolves parts of the flow indicated by the a posteriori error estimates but leaves shocks and turbulence under‐resolved in a large eddy simulation. The method is tested for examples in 2D and 3D and is validated against experimental data. Copyright © 2012 John Wiley & Sons, Ltd. |
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Keywords: | compressible turbulent flow large eddy simulation adaptive finite element method numerical stabilization transonic flow supersonic flow |
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