Modeling of the human aortic arch with its major branches for computational fluid dynamics simulation of the blood flow

被引:19
作者
Mori, D
Hayasaka, T
Yamaguchi, T
机构
[1] Tohoku Univ, Dept Mechatron & Precis Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama, Japan
关键词
CFD; blood flow; aortic arch; branches; differential geometrical modeling;
D O I
10.1299/jsmec.45.997
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We devised a method that combines the differential geometrical technique and overset grid formation to construct an aortic arch model for computational fluids dynamics (CFD) simulations. The simulations incorporate both non-planarity and the major branches at the top of the arch, using a set of magnetic resonance (MR) images, and we discuss their combined effects on blood flow. The results show that flow along the arch consists of a large right-handed rotational flow in the descending part of the arch, and a large left-handed rotational flow at the end of the arch. Although these characteristics of the global flow, were similar to the results obtained using our previous arch model without branches, backward flow was found near the inner wall at the top of the arch due to the flow into the branches.
引用
收藏
页码:997 / 1002
页数:6
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