Question

Asked Nov 19, 2019

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A rectangular channel 3 m wide carries 10 m^3/s at a depth of 2 m. Is the flow subcritical or supercritical? For the same flowrate, what depth will give critical flow? [Answer in units of m].

Step 1

**Find the velocity of flow using continuity equation.**

Step 2

**Find the Froude number using the expression.**

Step 3

**Find the flow subcritical or supercritical.**

The Froude number is lesser than 1. Th...

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