Jérôme BREIL, Vivien LORIDAN, Laurent MUSCAT

DOI Number: N/A

Conference number: HiSST-2025-151

The paper presents a structured mesh regularization strategy based on the line sweeping method, which has been modified to enable the enforcement of wall orthogonality and refinement of the mesh near the wall. The method enhances mesh regularity and is integrated into the CEA inhouse aerothermal simulation code, allowing seamless application to both steady and unsteady computations. The proposed framework is demonstrated to be effective in regularizing structured meshes, resolving tangled cell issues, and enforcing wall orthogonality in hypersonic simulations. The method is also shown to be effective in a fluid-structure interaction case, where the thermal protection system undergoes ablation in an unsteady simulation. The results demonstrate that the method significantly enhances the robustness and accuracy of hypersonic reentry simulations, particularly in the presence of strong shocks, thin boundary layer and wall deformations.

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In Categories: 1.Events, 1.HiSST 2025, High-Speed Aerodynamics and Aerothermodynamics with application to hypersonic regimes
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