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Cardiovascular and lung mesh generation based on centerlines
Author(s) -
Marchandise E.,
Geuzaine C.,
Remacle J.F.
Publication year - 2013
Publication title -
international journal for numerical methods in biomedical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 63
eISSN - 2040-7947
pISSN - 2040-7939
DOI - 10.1002/cnm.2549
Subject(s) - polygon mesh , volume mesh , hexahedron , mesh generation , tetrahedron , isotropy , tangent , metric (unit) , geometry , computer science , algorithm , mathematics , computational science , finite element method , topology (electrical circuits) , engineering , physics , structural engineering , combinatorics , operations management , quantum mechanics
SUMMARY We present a fully automatic procedure for the mesh generation of tubular geometries such as blood vessels or airways. The procedure is implemented in the open‐source Gmsh software and relies on a centerline description of the input geometry. The presented method can generate different type of meshes: isotropic tetrahedral meshes, anisotropic tetrahedral meshes, and mixed hexahedral/tetrahedral meshes. Additionally, a multiple layered arterial wall can be generated with a variable thickness. All the generated meshes rely on a mesh size field and a mesh metric that is based on centerline descriptions, namely the distance to the centerlines and a local reference system based on the tangent and the normal directions to the centerlines. Different examples show that the proposed method is very efficient and robust and leads to high quality computational meshes. Copyright © 2013 John Wiley & Sons, Ltd.