Question:-
Given that
U =velocity in the x-direction
V = velocity in the y-direction
A two- dimensional flow in x-y plane is irrotational if
Option (A)
(u/x) = (v/y)
Option (B)
(u/x) = (u/y)
Option(C)
(v/x) = (u/y)
Option(D)
(v/x) = (v/y)
Correct Option:
(C)
Question Solution:
Irrotational flow:- If the fluid particle don’t rotate about their mass centre while moving in the direction of motion, the flow is called as irrotational flow.(free vortex)
w = (1/a)[(v/x)-( u/y)] =0
\ (v/x)=( u/y)
question-answer-faq-3033