狭窄动脉血流的数值模拟

H. Tarman
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引用次数: 0

摘要

在轴对称几何条件下,采用谱元法对狭窄动脉血流进行了数值模拟。在适当的条件下,该方法具有较高的准确度。使用弱形式的控制模型方程,在处理非标准几何解域时带来了灵活性。通过在数值公式中以自然的方式处理压力,保持了流动的螺线形特征。使用legende - lobatto网格点,其在边界附近的密集分布增加了网格解析流动边界层的能力。这项研究旨在作为该技术发展的第一步。
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Numerical simulation of flow through stenotic artery
Numerical simulation of flow through stenotic artery is performed using spectral element method in an axisymmetric geometry.This method, under suitable conditions, provides high accuracy. The use of the weak form of the governing model equations, brings flexibility in treating solution domains with nonstandard geometry. The solenoidal character of the flow is preserved by the treatment of the pressure in a natural way in the numerical formulation. The use of Legendre-Lobatto grid points with its denser distribution near the boundaries increases the ability of the grid to resolve the flow boundary layer. This study is aimed as the first step in the development of the technique.
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