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An adaptive remeshing strategy for unsteady aerodynamics applications

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Abstract

The present paper aims to couple an unstructured Finite Volume formulation using a multi-level grid overlapping methodology based on geometric intersection algorithms with an adaptive remeshing strategy for aerodynamics applications. A general high-order repartition of the variables for any subdivision of a cell is presented and then applied to an Adaptive Mesh Refinement module and a disassembling one for the intersected cells: a third-order accurate and conservative projection of the variables has been implemented. An assessment of the accuracy is performed on the advection of a vortex with and without a geometric intersection of grids. Finally a more complex functional test case is studied, it is the resolution of the wake structure of a transonic square cylinder
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Dates and versions

hal-02277522 , version 1 (03-09-2019)

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Alexandre Limare, Pierre Brenner, Houman Borouchaki. An adaptive remeshing strategy for unsteady aerodynamics applications. 46th AIAA Fluid Dynamics Conference, Jun 2016, Washington, United States. ⟨10.2514/6.2016-3180⟩. ⟨hal-02277522⟩
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