Shear stress and shear rate are two basic parameters that characterize the rheological properties of the system
The force exerted on the unit area of the liquid layer is called the shear stress τ (N/m2). The instrument for measuring kinematic viscosity is called a kinematic viscometer. There are multiple unit expressions for kinematic viscosity, and the conversion unit is converted to: 1㎡/s=10^4St=10^6cSt. What is kinematic viscosity? Kinematic viscosity is also called kinematic viscosity, which refers to the ratio of hydrodynamic viscosity to fluid density ρ, in square meters/s. The internal friction force generated by the interaction between the fluids, the unit is Newton second per square, and Pa When two plates with an area of 1 square meters and a distance of 1 m are immersed in a liquid, they move relative to each other at a speed of 1 m/s. It refers to the ratio of stress to strain rate. Dynamic viscosity is also referred to as absolute viscosity, simple viscosity, and dynamic viscosity. Viscosity refers to the internal friction between molecules when the fluid is subjected to an external force.
