engineering recuitment HPCL Engineer Mock Test 2024 Fluid Mechanics Open Channel Flow Rapidly Varied
An irrigation canal has a steady discharge Q at a section where a cross-regulation (gate) is provided for control purposes. If the gate of the regulator, which is normally fully open, is suddenly lowered down to a half-open position, then a rapidly varied unsteady flow results both upstream and downstream of the gate. In such a case, it would take the form of
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a positive surge moving u/s and a negative surge moving d/ s
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a positve surge moving d /s and a negative surge moving u / s
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a postive surge moving u /s and a positive surge moving d /s
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a negative surge moving u /s and a negative surge moving d / s