Pontrelli G
Istituto per le Applicazioni del Calcolo-CNR, Viale del Policlinico, 137, 00161 Roma, Italy.
Proc Inst Mech Eng H. 2001;215(1):1-10. doi: 10.1177/095441190121500101.
This paper studies a steady axisymmetric flow in a constricted rigid tube. A shear-thinning fluid modelling the deformation-dependent viscosity of the blood is proposed. The motion equation is written in vorticity-streamfunction formulation and is solved numerically by a finite difference scheme. The flow pattern with the distributions of pressure and shear stress at the wall are computed. The dependence of the flow on the dimensionless parameters has been investigated and differences from the Newtonian case are discussed.
本文研究了收缩刚性管中的定常轴对称流动。提出了一种模拟血液变形相关粘度的剪切变稀流体。运动方程采用涡度-流函数形式书写，并通过有限差分格式进行数值求解。计算了壁面处压力和剪应力分布的流动模式。研究了流动对无量纲参数的依赖性，并讨论了与牛顿流体情况的差异。
