Isogeometric fluid-structure interaction analysis with applications to arterial blood flow
Isogeometric fluid-structure interaction analysis with applications to arterial blood flow
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DOI：
10.1007/s00466-006-0084-3
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发表时间：
2006-09-01
影响因子：
4.1
通讯作者：
Hughes, T. J. R.
中科院分区：
文献类型：
--
作者：
Bazilevs, Y.;Calo, V. M.;Hughes, T. J. R.
开发了基于 NURBS（非均匀有理 B 样条）的等几何流体结构相互作用公式，将不可压缩流体与非线性弹性固体耦合，并允许较大的结构位移。这种方法涵盖了非常普遍的应用类别，适用于动脉血流建模和模拟问题。此外，还概述了一组能够直接根据患者特定成像数据构建适合分析的 NURBS 几何形状的程序。该方法与代表性的基准问题进行了比较，产生了非常好的结果。还对特定患者的腹主动脉进行了计算，与其他研究人员使用类似模型的计算得出了定性的一致性。
A NURBS (non-uniform rational B-splines)-based isogeometric fluid-structure interaction formulation, coupling incompressible fluids with non-linear elastic solids, and allowing for large structural displacements, is developed. This methodology, encompassing a very general class of applications, is applied to problems of arterial blood flow modeling and simulation. In addition, a set of procedures enabling the construction of analysis-suitable NURBS geometries directly from patient-specific imaging data is outlined. The approach is compared with representative benchmark problems, yielding very good results. Computation of a patient-specific abdominal aorta is also performed, giving qualitative agreement with computations by other researchers using similar models.