The critical velocity ratio (V / Vo) in Kennedy’s silt theory for canal design is defined as:
ARatio of actual mean velocity to critical non-silting non-scouring velocity
BRatio of critical velocity to maximum channel capacity
CRatio of mean depth to hydraulic radius
DRatio of bed shear stress to critical shear stress
Explanation
Critical Velocity Ratio CVR = V / Vo, where V is actual mean velocity and Vo is Kennedy’s critical velocity.

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