【作者】 崔海清； 郭军辉； 郑晓松； 高涛； 尹晓喆；

【Author】 Cui Hai-qing Guo Jun-hui Zheng Xiao-song Gao Tao Yin Xiao-zhe (Department of Petroleum Engineering, Daqing Petroleum Institute, Daqing 163318, China; Petroleum Research Institute of Exploration and Development, Daqing Oil Field Corp.Ltd, Daqing 163712, China)

【机构】 大庆石油学院； 大庆油田有限责任公司勘探开发研究院；

【摘要】 建立了双极坐标系下牛顿流体在内管做轴向往复运动的偏心环空中非定常流的控制方程、初始条件和边界条件方程,以及瞬时流量计算公式。给出了计算这种流动瞬时流量分布的数值方法。以水为例,对这种流动的流量分布进行了数值计算,绘制了瞬时流量分布曲线。分析结果表明,环空偏心距、内管冲程、内管冲次对瞬时流量分布的影响较为明显。更多还原

【Abstract】 The governing equations, initial and boundary condition equations, and instantaneous flow rate formula of unsteady flow of the Newtonian fluid in eccentric annuli with the inner cylinder reciprocating axially in bipolar coordinate system are established in this paper. On the bases of these equations and formula,a numerical method of calculating the instantaneous flow rate distribution of the unsteady flow of the Newtonian fluid in eccentric annuli with the inner cylinder reciprocating axially is introduced in the paper. As to water, the instantaneous flow rate distribution of the flow is calculated, and the distribution curves are plotted. Analyses indicate that the eccentricity, the stroke and the frequency of the inner cylinder all affect the instantaneous flow rate distribution remarkably.更多还原