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Question
When a fluid flows through a tapering pipe at a constantly increasing rate, the flow is said to be
A.
Turbulent flow
B.
Unsteady uniform flow
C.
Unsteady non-uniform flow
D.
Irrotational flow
Answer ( Option C)

Unsteady non-uniform flow

Solution

Steady-uniform flow :-
Flow through a long constant diameter pipe at a constant flow rate.
• Convective acceleration = not-exist
• Temporal acceleration = not-exist
Unsteady-uniform flow :-
Flow through a long constant diameter pipe at either decreasing or increasing flow rate.
• Convective acceleration = not-exist
• Temporal acceleration = exist
Steady-nonuniform flow :-
Flow through a tapering pipe at constant flow rate.
• Convective acceleration = exist
• Temporal acceleration = not-exist
Unsteady-nonuniform flow :-
Flow through a tapering pipe either decreasing or increasing flow rate.
• Convective acceleration = exist
• Temporal acceleration = exist

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