【摘要】 利用下随体Maxwell本构模型,建立了双极坐标系下黏弹性流体在内管做轴向运动的偏心环空中定常流的控制方程,利用控制体积法对其离散化处理,并用 ADI方法求解流场的速度分布,分析了偏心距等参数对速度分布和流量的影响. 结果表明,偏心距对流场的速度分布和流量影响较大.更多还原

【Abstract】 Based on the sub-while-fluid Maxwell constitutive model, the control equation of the steady flow of viscoelastic fluid in the eccentric annulus with inner rod axial moving in the bipolar coordinate system was established and dispersed by control-volume method. Then the velocity distribution was solved by ADI methods, and the effect of eccentric ratio on the velocity distribution and flow rate was analyzed. The result shows that the eccentricity has a major effect on both velocity distribution and flow rate.更多还原