宾汉流体偏心环状管流的数值模拟

Numerical Modeling of Eccentric Annular Flow of Bingham-fluid

在调研了大量关于宾汉流体偏心环状管流的文献之后,发现大都是近似计算而不具有普适性。根据流体力学中N-S方程对层流的描述,再结合力学理论,对其流动界面提出严密而科学的界面耦合条件,得到了完整描述其流动的适定的偏微分方程组,通过计算机数值模拟,得到了它的流动规律,具有工程应用价值。

Computation of eccentric annular flowing on Bingham-fluid in pipe is approximate in many literatures and is not of universality. Interface-coupling equations on eccentric annular flowing on Bingham-fluid in pipe are put forward and a system of partial differential equations is obtained for describing the flow based on N-S equations of hydromechanics and mechanics. By numerical computation,important flowing laws on eccentric annular flowing on Bingham-fluid is obtained,which is useful to oil industry.