Dynamic viscosity

Dynamic viscosity

Definition – Dynamic viscosity is defined as the tangential force per unit area required to move one horizontal plane with respect to the other at unit velocity when maintained a unit distance apart by the fluid.

  • Dynamic viscosity is a measure of the internal fluid resistance
  • Dynamic viscosity is also termed as absolute viscosity
  • Water at room temperature has a viscosity of one cP

Units - Dynamic Viscosity is measured in N s/m2, Pa s, kg/m s, centipoise (cP)

1 Pa s = 1 N s/m2 = 1 kg/m s = 1000 cP

Related terms – Fluid viscosity, Absolute viscosity, Centipoise,  Apparent viscosity,  Absolute viscosity, Kinematic Viscosity

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