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Comparing anisotropic adaptive strategies on the 2nd AIAA sonic boom workshop geometry

Adrien Loseille 1 Loic Frazza 1 Frédéric Alauzet 1
1 Gamma3 - Automatic mesh generation and advanced methods
Inria Saclay - Ile de France, ICD - Institut Charles Delaunay
Abstract : The recent release of the 2nd AIAA sonic boom geometry offers the opportunity to review the classical anisotropic adaptive strategies for complex geometries. The design of Mach-aligned tailored grids is also a great challenge to see how adaptivity can compete with user-defined tailored grids. Two classical adaptive strategies, multi-scale and goal-oriented, are compared with the results obtained on tailored grids. For the flow solver, we discuss several low-dissipation numerical schemes of order 4th and 6th with respect to regular 2nd order scheme both on inviscid and RANS flow conditions. We finally perform a non-linear error analysis to assess the convergence of the sequence of adaptive meshes with respect to tailored grids. All results and discussions are based on the C25D baseline geometry.
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Submitted on : Thursday, December 20, 2018 - 2:19:26 PM
Last modification on : Thursday, March 11, 2021 - 9:42:02 PM
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Adrien Loseille, Loic Frazza, Frédéric Alauzet. Comparing anisotropic adaptive strategies on the 2nd AIAA sonic boom workshop geometry. Journal of Aircraft, American Institute of Aeronautics and Astronautics, 2018, pp.1-15. ⟨hal-01962175⟩

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