Discuss the flow characteristics in the pipes shown in figure, for constant flow

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first pipe flow is steady-uniform and in second pipe it is steady non-uniform.

first pipe flow is steady-non-uniform and in second pipe it is steady non-uniform.

first pipe flow is steady-uniform and in second pipe it is steady uniform.

first pipe flow is unsteady-uniform and in second pipe it is steady non-uniform.

answer is A.

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Detailed Solution

For constant rate of flow, velocity at different points in the direction of flow do not change with time, so flow in both the pipes is steady. But in pipe of varying cross-section, the velocity of flow changes with distance, so the flow will be non-uniform. Thus in first pipe flow is steady-uniform and in second pipe it is steady non-uniform.

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