When velocity potential (Φ) is constant, it is called as _________(a) velocity line(b) velocity curve(c) potential line(d) equipotential lineThe question was asked during a job interview.My question is taken from Doublet Flow in portion Inviscid & Incompressible Flow of Aerodynamics

When velocity potential (Φ) is constant, it is called as _________(a)

1.	When velocity potential (Φ) is constant, it is called as _________(a) velocity line(b) velocity curve(c) potential line(d) equipotential lineThe question was asked during a job interview.My question is taken from Doublet Flow in portion Inviscid & Incompressible Flow of Aerodynamics
Answer» Right ANSWER is (d) equipotential LINE The best explanation: The line ALONG which the velocity potential (Φ) is constant is called a equipotential line. For an equipotential line, Φ=constant and also dΦ=0 The slope for the equipotential line can be given as=dy/dx.

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