Fully Coupled, Higher‐Order, Block‐Structured Mesh Generation in Fluid–Structure Interaction

In fluid–structure interaction (FSI), a fluid flow and a deforming solid are coupled along a time‐dependent and moving interface. The change in the fluid domain requires an update of the related mesh. Herein, we propose to use a higher‐order block‐structured mesh generation approach, where a new mes...

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Bibliographic Details
Published in:International journal for numerical methods in fluids 2024-11
Main Authors: Schwentner, Teresa, Fries, Thomas‐Peter
Format: Article
Language:English
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Summary:In fluid–structure interaction (FSI), a fluid flow and a deforming solid are coupled along a time‐dependent and moving interface. The change in the fluid domain requires an update of the related mesh. Herein, we propose to use a higher‐order block‐structured mesh generation approach, where a new mesh is generated (rather than updated) in every time step, taking the deformed FSI‐interface into account. The mesh generation is based on a block‐structure, consisting of coarse, linear quads, and transfinite maps to generate sub‐meshes inside the block‐structure, of any desired number and order of elements. The approach presented herein enables high‐quality meshes throughout the simulation. The selection of the block‐structure is crucial and leads to a very robust method. The performance of the mesh generation approach is confirmed through numerical results.
ISSN:0271-2091
1097-0363
DOI:10.1002/fld.5355