非牛顿流体在圆管中分层流动及减阻规律  

The stratified flow and the law of drag reduction for non-Newtonian fluids in pipe

作　　者：郑永刚[1] 谢翠丽[2] 

机构地区：[1]四川大学,四川成都610065 [2]石油大学(华东),山东东营257062

出　　处：《水动力学研究与进展（A辑）》2000年第3期314-319,共6页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金资助项目!(596 0 90 0 3)

摘　　要：本文提出了研究圆管分层流动的新模型 ,并利用该模型研究了非牛顿流体在圆管中分层层流流动 ,得出了速度场的解析分布式 ,最后 ,研究了分层流动的阻力规律 ,为分层掺气减阻提供了理论依据。研究表明 ,分层掺气可以在较大范围内实现有效的减阻。WT5”BZ]This paper proposes a new model to study the stratified flow in pipe, and by using this model the stratified laminar flow of non Newtonian fluids in pipe is studied. Analytical correlations of velocity are obtained. Finally, the law of flow resistance for the stratified flow is researched, which provides a theoretical base for drag reduction by aeration in stratified flow. This research shows that aeration in stratified flow can make the drag reduce effectively in a wide range. [WT5HZ]

关 键 词：非牛顿流体 圆管 分层流 新模型 减阻 

分 类 号：O373[理学—流体力学] O357.1[理学—力学]