Quality open source mesh generation for cardiovascular flow simulations

Abstract

We present efficient algorithms for generating quality tetrahedral meshes for cardiovascular blood flow simulations starting from low quality triangulations obtained from the segmentation of patient specific medical images. The suite of algorithms that are presented in this paper have been implemented in the open-source mesh generator Gmsh [19]. This includes a high quality remeshing algorithm based on a finite element conformal parametrization and a volume meshing algorithm with a boundary layer generation technique. In the result section, we show that the presence of a boundary layer mesh plays an important role to reduce the problem size in cardiovascular flow simulations. © Springer-Verlag Italia 2012.