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When is a fluid said to be ideal?

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+1 vote
in Fluid Mechanics by (118k points)
When is a fluid said to be ideal?

(a) Non viscous and Incompressible

(b) Viscous and compressible

(c) Viscous and Incompressible

(d) Incompressible

The question was asked in an internship interview.

Question is taken from Newton’s Second Law topic in portion Fluid Dynamics of Fluid Mechanics

1 Answer

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Best answer
Correct answer is (a) Non viscous and Incompressible

The best explanation: Ideal fluids are fluids that have a zero viscosity. This result in a flow called as inviscid flow. Inviscid flow is non viscous and incompressible since there is no existence of shear force due to zero viscosity.

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