{"title":"Fully Coupled, Higher-Order, Block-Structured Mesh Generation in Fluid–Structure Interaction","authors":"Teresa Schwentner, Thomas-Peter Fries","doi":"10.1002/fld.5355","DOIUrl":null,"url":null,"abstract":"<p>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.</p>","PeriodicalId":50348,"journal":{"name":"International Journal for Numerical Methods in Fluids","volume":"97 3","pages":"359-377"},"PeriodicalIF":1.7000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/fld.5355","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal for Numerical Methods in Fluids","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/fld.5355","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
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.
期刊介绍：
The International Journal for Numerical Methods in Fluids publishes refereed papers describing significant developments in computational methods that are applicable to scientific and engineering problems in fluid mechanics, fluid dynamics, micro and bio fluidics, and fluid-structure interaction. Numerical methods for solving ancillary equations, such as transport and advection and diffusion, are also relevant. The Editors encourage contributions in the areas of multi-physics, multi-disciplinary and multi-scale problems involving fluid subsystems, verification and validation, uncertainty quantification, and model reduction.
Numerical examples that illustrate the described methods or their accuracy are in general expected. Discussions of papers already in print are also considered. However, papers dealing strictly with applications of existing methods or dealing with areas of research that are not deemed to be cutting edge by the Editors will not be considered for review.
The journal publishes full-length papers, which should normally be less than 25 journal pages in length. Two-part papers are discouraged unless considered necessary by the Editors.
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