Geometry for the simulation of blood flow in a cerebral aneurysm

The provided geometry is used in the publication "Numerical simulation of endovascular treatment options for cerebral aneurysms" authored by Martin Frank, Fabian Holzberger, Medeea Horvat, Jan Kirschke, Matthias Mayr, Markus Muhr, Natalia Nebulishvili, Alexander Popp, Julian Schwarting and Barbara Wohlmuth. Starting from the original dataset no. C0074b from the Aneurisk archive of aneurysm geometries [http://ecm2.mathcs.emory.edu/aneuriskweb/index], this geometry is the result of the pre-processing tool chain outlined in Section 3 of the manuscript to modify the input geometry with the goal of subsequent flow simulations. This geometry can be found in Figures 2, 3 and 7 of the manuscript. Most importantly, this geometry serves as the basis for the numerical experiments with the lattice Boltzmann method (Figures 14, 15, and 16) in Section 6.2 of the mansucript. The file is provided in the *.obj format including the described coloring of in- and outflow boundaries. The file can be inspected and converted to different file-formats, e.g. using the software meshlab [https://www.meshlab.net/].本几何模型应用于论文《颅内动脉瘤血管内治疗方案的数值模拟》，作者为Martin Frank、Fabian Holzberger、Medeea Horvat、Jan Kirschke、Matthias Mayr、Markus Muhr、Natalia Nebulishvili、Alexander Popp、Julian Schwarting 及 Barbara Wohlmuth。 本几何模型源自Aneurisk动脉瘤几何数据库[http://ecm2.mathcs.emory.edu/aneuriskweb/index]中的原始数据集C0074b号，经本文稿第3章所述的预处理工具链对输入几何模型进行修改，以开展后续流动模拟。该几何模型可见于本文稿的图2、图3与图7。尤为重要的是，该几何模型是本文稿6.2节中基于格子玻尔兹曼方法（lattice Boltzmann method）开展数值实验的基础，相关实验结果可见图14、图15及图16。 本文件以*.obj格式提供，附带本文所述的入流与出流边界着色方案。可通过MeshLab软件[https://www.meshlab.net/]对该文件进行查看或转换为其他格式。