Cardiovascular and lung mesh generation based on centerlines
Cardiovascular and lung mesh generation based on centerlines
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基于中心线的心血管和肺网格生成
DOI：
10.1002/cnm.2549
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发表时间：
2013
影响因子：
2.1
通讯作者：
J. Remacle
中科院分区：
文献类型：
--
作者：
E. Marchandise;C. Geuzaine;J. Remacle
我们提出了一个全自动的程序，如血管或气道的管状几何形状的网格生成。该过程在开源Gmsh软件中实现，并依赖于输入几何的中心线描述。该方法可以生成不同类型的网格：各向同性四面体网格，各向异性四面体网格，混合六面体/四面体网格。另外，可以生成具有可变厚度的多层动脉壁。所有生成的网格都依赖于网格尺寸场和基于中心线描述的网格度量，即到中心线的距离和基于中心线的切线和法线方向的局部参考系。不同的例子表明，该方法是非常有效的和强大的，并导致高质量的计算网格。版权所有© 2013约翰威利父子有限公司.
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.