What is the physical meaning of dynamic viscosity?
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The unit of fluid dynamic viscosity is m2/s; in terms of its unit, dynamic viscosity can be understood as area per time, and the smaller this value, the worse the fluidity. Why is it that the higher the kinematic viscosity, the worse the fluidity?
This post was last edited by crazymoonman on 2021-6-2 at 16:29. The unit of dynamic viscosity, mm2/s, is called centistokes; it is the ratio of dynamic viscosity to density, not apparent square millimeters per second. It represents the ratio of shear stress to shear rate in a fluid. The higher this value, the greater the ratio of dynamic viscosity to density. If the density remains constant, it indicates an increase in dynamic viscosity, which in turn means an increase in the viscosity of the liquid.