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Navier- Stokes equation describes the motion of __________

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in Fluid Mechanics by (118k points)
Navier- Stokes equation describes the motion of __________

(a) Solid substance

(b) Non-viscous fluid

(c) Viscous fluid

(d) Gas

The question was asked in quiz.

My question comes from Navier-Stokes Equations of Motion in portion Fluid Dynamics of Fluid Mechanics

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Correct option is (c) Viscous fluid

The explanation is: The equation described by Navier- Stokes is for a viscous fluid. The balanced equation arises from Newton’s Second Law of fluid motion. It assumes that the stress in the fluid is equal to the sum of a diffusing viscous term and a pressure term.

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