摘要
研究了幂律型非牛顿流体本构常数的测量误差对于计算广义雷诺数、阻力系数以及建立二者实验关系的影响；指出在一定的（ｎ，ｋ）范围内，误差传播系数相当大，以致对本构测量精度要求很高。还分析了传播系数的因次和谐问题，并提出了改进本构测量的建议。
The effect of errors in measuring the constitutive parameters of power-law non-Newtonian fluid on the calculation of generalized Reynolds number and friction factor, and the determinationof the experimental relation between them is investigated in this paper. In a:certain range of n and k,error propagation coefficients are quite big so that a constitutive measurement of high precision is required. The dimensional homogeneity of the propagation coefficients is analyzed and an improvement over the constitutive measurement is also suggested.
出处
《计量学报》
CSCD
1994年第2期132-137,共6页
Acta Metrologica Sinica
关键词
幂律型
本构常数
测量
非牛顿流体
Power-law fluid
Measurement of constitutive parameter
Generalized Reynolds number
Friction factor
