The compound of Alkali Surfactant Polymer (ASP) is a kind of viscoelastic fluid, its rheological behavior can be formulated by power law model in simple shear flow within medium shear rate.
就其流变性而言，聚合物溶液和碱—表面活性剂—聚合物（ASP）复合体系均属粘弹性流体，但在中等剪切速率的简单剪切流动条件下，其流变性可用幂律模式描述。
But for the life of the tube, flow rate, as well as fluid resistance, essentially no effect.
但对管子的寿命、流量、以及对流体的阻力，基本上没什么影响。
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.
本文用垂直同轴圆柱环形空间内的螺旋流流场作为钻井井内流体流场的理想化模型，得出了任意纯粘性流体螺旋流流场的速度及排量表达式。
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