Question:-
Irrotational flow occurs when
Option (A)
Flow takes place in a duct of uniform cross-section at constant mass flow rate
Option (B)
Streamlines are curved
Option(C)
There is no net rotation of the fluid element about its mass centre
Option(D)
Fluid element does not undergo any change in size or shape
Correct Option:
(C)
Question Solution:
If the fluid particles do not rotate about their mass centers while moving in the direction of motion , the flow is called as an irrotational flow
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