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An approach of dynamic mesh adaptation for simulating 3‐dimensional unsteady moving‐immersed‐boundary flows
Author(s) -
Peng B.,
Zhou C.H.
Publication year - 2018
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.4486
Subject(s) - discretization , polygon mesh , boundary (topology) , tetrahedron , mesh generation , adaptive mesh refinement , laplacian smoothing , flow (mathematics) , computer science , immersed boundary method , t vertices , algorithm , compressibility , geometry , mathematical optimization , mathematics , finite element method , mechanics , computational science , mathematical analysis , physics , structural engineering , engineering
This work is the first endeavor to combine dynamic adaptation of tetrahedral mesh with an immersed boundary method for simulating 3D moving‐boundary flows. The complexity of adaptive mesh generation is reduced by implementing the rule that the level difference of neighboring cells never exceeds 1. The geometric quality of mesh does not degrade as the mesh level increases and the error caused by each solution transferring from the old mesh to the new one is relatively small.