Doubts & DiscussionCategory: TheoryDynamic and kinematic viscosity
geologykabir Staff asked 4 years ago

Anyone explain me what is the difference between dynamic and kinematic viscosity?
Please explain in detail

1 Answers
Best Answer
GeoCon Staff answered 4 years ago

Dynamic viscosity is related to external force applied on the fluid, mostly for non-newtonian fluid.
Kinematic viscosity is the inherent viscosity of a fluid under the influence of gravity only, mostly for newtonian fluids.
Mathematically,
Dynamic viscosity, (?) given as,
F/A = ? (du/dy)
F/A here is shear stress acting parallel to the flow
du/dy is the velocity gradient.
Kinamatic viscosity, (?) given as,
? = ?/p
p is density
I think this will help!
 
 

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