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.
https://hal.inria.fr/hal-01962175 Contributor : Adrien LoseilleConnect in order to contact the contributor Submitted on : Thursday, December 20, 2018 - 2:19:26 PM Last modification on : Friday, February 4, 2022 - 3:31:34 AM Long-term archiving on: : Friday, March 22, 2019 - 10:53:40 AM
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⟩