Comparing anisotropic adaptive strategies on the 2nd AIAA sonic boom workshop geometry
Author(s) -
Adrien Loseille,
Loïc Frazza,
Frederic Alauzet
Publication year - 2017
Publication title -
54th aiaa aerospace sciences meeting
Language(s) - English
Resource type - Conference proceedings
DOI - 10.2514/6.2017-0281
Subject(s) - sonic boom , geometry , anisotropy , aerospace engineering , boom , computer science , acoustics , physics , geology , engineering , mathematics , optics , supersonic speed , oceanography
The recent release of the 2ndAIAASonicBoomWorkshop geometries 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 provided by NASA.
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