摘要
研究了偏心环空中幂律流体螺旋流流动状态。提出了新的判别流动状态的理论和方法,即应用层流稳定性的Hanks参数H分析了影响流动状态的因素,认为可用稳定性参数H判别偏心环空中幂律流体螺旋流流动状态。同时认为;由于存在宽间隙和窄间隙的问题,偏心环空螺旋流流场不一定同时发生全场紊流。通过与实测资料对比,对本文新理论进行了验证。
This paper aims at studying the flowing behavior problem of helical flow for power
-law fluid in eccentric annulus and proposes a new theoretical method called the stabili-
ty parameter H for determining the behavior of helical flow in it, and analyzes the influ-
ence factors on the behavior of flow. The parameter H can be used to determine the
flow form of helical flow of power-law fluid in the eccentric annulus. We think that it
is not definite that the flow is turbulent in the whole flow field of helical flow of power
-law fluid in eccentric annulus because of the problems of wide annulus clearance.
出处
《大庆石油学院学报》
CAS
北大核心
1992年第3期11-17,共7页
Journal of Daqing Petroleum Institute
关键词
螺旋流动
偏心环空
幂律流体
helical flow
[eccentric annulus]
[power-law fluid]
