流体在内管做行星运动的环空中流动的压力梯度  

Pressure gradient of Newtonian fluid flow in annulus with inner cylinder executing planetary motion

作　　者：崔海清[1] 张淑云[1] 修德艳[2] 蔡萌[1] 

机构地区：[1]大庆石油学院提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]中国石油冀东油田公司勘探开发研究院,河北唐山063000

出　　处：《中国石油大学学报（自然科学版）》2008年第6期76-78,87,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(50374018);黑龙江省自然科学基金项目(A0201)

摘　　要：利用待定系数法对牛顿流体在内管做行星运动的环空中流动的运动方程进行了变换,得到了给定流量条件下牛顿流体在内管做行星运动的环空中流动的压力梯度计算公式。采用有限差分法对水在内管做行星运动的环空中流动的压力梯度进行了数值计算。结果表明,压力梯度随环空偏心度的增大而减小,随流量的增大而增大。The kinematic equations of the flow of Newtonian fluid in annulus with the inner cylinder executing a planetary motion were transformed using undetermined coefficient method, and the calculation formula of pressure gradient of the flow was obtained with the given flow rate. Taking water as an example, the pressure gradient was numerically calculated by finite difference method. The calculation results show that the pressure gradient decreases with the annular eccentricity increasing and increases with the flow rate increasing.

关 键 词：牛顿流体 行星运动 环空 压力梯度 待定系数法 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]