Abstract
The recent release of the second 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, multiscale and goal-oriented, are compared with the results obtained on tailored grids. For the flow solver, several low-dissipation numerical schemes of order 4 and 6 are discussed with respect to regular second-order scheme both on inviscid and Reynolds-averaged Navier–Stokes flow models. Finally, a nonlinear error analysis is performed 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 for the Second AIAA Sonic Boom Prediction Workshop.
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