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Communication Dans Un Congrès Année : 2021

Nearfield anisotropic mesh adaptivity for the third AIAA sonic boom workshop

Résumé

Sonic boom prediction is critical for the development of low-boom supersonic aircraft and encouraging a replacement of the overland commercial supersonic ban with a certification standard. The Third AIAA Sonic Boom Workshop nearfield test cases provide a unique opportunity to review anisotropic adaptive-mesh strategies for complex geometries with important propulsion interaction effects. Anisotropic metrics formulated to control estimated Mach interpolation and integrated nearfield pressure signature (goal-oriented) errors are compared with the results obtained on workshop-provided meshes. Detailed flow solutions and mesh renderings are combined with computational schlieren images to reveal the complex interactions present in a shock-plume interaction wind tunnel model and a prototype of the Low-Boom Flight Demonstrator. A favorable comparison of independent implementations of the entire simulation process provides evidence that each process is implemented correctly and sets a solid foundation for confidence in the nearfield prediction of each method.
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hal-04401294 , version 1 (17-01-2024)

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Julien Vanharen, Adrien Loseille, Frédéric Alauzet, Michael Andrew Park. Nearfield anisotropic mesh adaptivity for the third AIAA sonic boom workshop. AIAA Scitech Forum - 3rd AIAA Sonic Boom Workshop, 2021, Virtual Event, Unknown Region. ⟨10.2514/6.2021-0347⟩. ⟨hal-04401294⟩
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