Nearfield anisotropic mesh adaptation for the third AIAA Sonic Boom Workshop

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 adap...

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Published in:Journal of aircraft 2022
Main Authors: Vanharen, Julien, Loseille, Adrien, Alauzet, Frédéric, Park, Micheal Andrew
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Language:English
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creator Vanharen, Julien
Loseille, Adrien
Alauzet, Frédéric
Park, Micheal Andrew
description 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.
doi_str_mv 10.2514/1.C036502
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Physics
title Nearfield anisotropic mesh adaptation for the third AIAA Sonic Boom Workshop
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