NDLI: Adjoint-Based Adaptive Mesh Refinement for Complex Geometries

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Adjoint-Based Adaptive Mesh Refinement for Complex Geometries

Content Provider	Semantic Scholar
Author	Nemec, Marian Aftosmis, Michael J. Wintzer, Mathias
Copyright Year	2008
Abstract	This paper examines the robustness and efficiency of an adjoint-based mesh adaptation method for problems with complicated geometries. The method is used to drive cell refinement in an embedded-boundary Cartesian mesh approach for the solution of the three-dimensional Euler equations. Detailed studies of error distributions and the evolution of cell-wise error histograms with mesh refinement are used to formulate an adaptation strategy that minimizes the run-time of the flow simulation. The effectiveness of this methodology for controlling discretization errors in engineering functionals of nonsmooth problems is demonstrated using several test cases in two and three dimensions. The test cases include a model problem for sonic-boom applications and parametric studies of launch-vehicle configurations over a wide range of flight conditions. The results show that the method is well-suited for the generation of aerodynamic databases of prescribed quality without user intervention.
File Format	PDF HTM / HTML
DOI	10.2514/6.2008-725
Alternate Webpage(s)	https://www.nas.nasa.gov/assets/pdf/staff/Nemec_M_Adjoint-Based_Adaptive_Mesh_Refinement_for_Complex_Geometries.pdf
Alternate Webpage(s)	https://www.nas.nasa.gov/publications/software/docs/cart3d/pages/publications/AIAA_2008-0725.pdf
Alternate Webpage(s)	https://www.nas.nasa.gov/assets/pdf/staff/Aftosmis_M_Adjoint-Based_Adaptive_Mesh_Refinement_for_Complex_Geometries.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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