摘要
本文从casson流体在毛细圆管作定常层流时的可测量参数──壁面切应力τw和流量Qc出发，定义表观粘度ηa和表观切变率γa.用τw，ηa和γa来描述casson流体在圆管内的定常层流，推导出壁面切应力和表观切变率满足的方程，得出此方程和casson方程的形式一样，表明可用毛细管粘度计间接得到casson流体的casson方程，分析其流变学特性.
Apparent viscosity ηa and apparent shear rate γa are defined on the base of the measurable parameters τw, the shear stress at tube wall, and Qc the mass of fluid, with Cassonian fluid at t he state of steady laminar flow in a tube. The author described the steady lamin ar flow of Cassonian fluid in a tube with τw,ηa and γa,derived the relative equation between τwand γa.The results indicate that the equation is similar to casson equation and that Cassonial fluid'equation can be measured by capillary viscometer.
出处
《物理与工程》
2000年第5期24-25,39,共3页
Physics and Engineering
