KSB Centrifugal Pump Lexicon –

From A to Z

Dynamic viscosity

Dynamic viscosity (η) is defined on the basis of its unit of force as the proportionality factor between the shear stress (τ) and the velocity gradiant (∂vx / ∂y). For this purpose it is dependent only on temperature and on pressure.

Dynamic viscosity (η) is derived from the NEWTONian formulation of shear stress (see NEWTONian liquid):

 

  

  

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