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Viscosity of a fluid, also called the coefficient of viscosity, absolute viscosity, or dynamic viscosity, is a measure of its resistance to flow. It is expressed as the ratio of the tangential shearing stresses between flow layers to the rate of change of velocity with depth

Facts About Viscosity are:-

1)Viscosity decreases as temperature increases.

2)The pressure effect is neglected in various engineering applications.
Water at 70°F (21.1°C) has a viscosity of 0.00002050 lb s/ft2 (0.00098 N s/m2).

3)Viscosity divided by density is called kinematic viscosity.

4)In hydraulics, viscosity is most frequently encountered in the calculation of Reynolds number to determine whether laminar, transitional, or completely turbulent flow exists.

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Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

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One comment on "Viscosity"

divyadharsini says:

i am also civil engineer studying in first year

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