摘要
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.
出处
《天然气与石油》
2006年第5期13-15,18,共4页
Natural Gas and Oil
关键词
油气集输
两相流
宾汉流体
偏心环状流
数学模型
数值模拟
Oil and gas gathering and transportation
Bingham fluid
Eccentric annular flow
Numerical modeling