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CFD Modeling of Pulsatile Hemodynamics in the Total Cavopulmonary Connection

机译:总肺部脉动血流动力学的CFD建模

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Total cavopulmonary connection is a blood flow pathway which is created surgically by an operation known as Fontan procedure, performed on children with single ventricle heart defects. Recent studies have shown that the hemodynamics in the connection can be strongly influenced by the presence of pulsatile flow. The aim of this paper is model the pulsatile flow patterns, and to calculate the vorticity field and power losses in an idealized 1.5D offset model of Total Cavopulmonary Connection. A three-dimensional polyhedral mesh was constructed for the numerical simulation. The rheological properties of blood were considered as Newtonian, and flow in the connection was assumed to be laminar. The results demonstrated complex flow patterns in the connection. The outcomes of the simulation showed reasonable agreement with the results available in the literature for a similar model.
机译:总抗腔连接是一种血流途径,其通过称为Fontan程序的操作手术,对单一心室心脏缺陷进行的儿童进行。最近的研究表明,连接中的血流动力学可以受到脉动流动的存在强烈影响。本文的目的是模型脉动流动模式,并在总穴位连接的理想化1.5D偏移模型中计算涡旋场和功率损耗。为数值模拟构建了三维多面体网。血液的流变性质被认为是牛顿的,并且假设连接的流动是层状的。结果在连接中显示了复杂的流动模式。模拟结果表明,与类似模型的文献中的结果表明合理的协议。

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