Boundary conditions for hemodynamics: The structured tree revisited

被引：23
作者：
Cousins, W. [1 ]
Gremaud, P. A. [1 ,2 ]
机构：
[1] N Carolina State Univ, Dept Math, Raleigh, NC 27695 USA
[2] Stat & Appl Math Sci Inst, Res Triangle Pk, NC 27709 USA
来源：
JOURNAL OF COMPUTATIONAL PHYSICS | 2012年 / 231卷 / 18期
基金：
美国国家科学基金会;
关键词：
Hemodynamics; Network; Transport; Modeling; Boundary conditions; Numerics; BLOOD-FLOW; MATHEMATICAL-ANALYSIS; SIMULATION; PRINCIPLE;
D O I：
10.1016/j.jcp.2012.04.038
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The structured tree boundary condition is a physiologically-based outflow boundary condition used in hemodynamics. We propose an alternative derivation that is considerably simpler than the original one and yields similar, but not identical, results. We analyze the sensitivity of this boundary condition to its parameters and discuss its domain of validity. Several implementation issues are discussed and tested in the case of arterial flow in the Circle of Willis. Additionally, we compare results obtained from the structured tree boundary condition to the Windkessel boundary condition and measured data. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码：6086 / 6096
页数：11
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