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The units of viscosity are __________

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in Aerodynamics by (773k points)
The units of viscosity are __________

(a) N/m

(b) Ns/m^2

(c) m/s

(d) Dimension less quantity

The question was asked during an interview.

This intriguing question comes from Doublet Flow topic in chapter Inviscid & Incompressible Flow of Aerodynamics

1 Answer

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Best answer
Correct answer is (b) Ns/m^2

The explanation: The viscosity is defined as the property of the fluid which offers resistance to the movement of one layer over the other layer. It is shear stress required to produce unit rate of shear strain that is force*time/length^2 that is  Ns/m^2.

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