[Ref. Vel. in Broken dam prob.]
In broken dam problem, how can I define the reference velocity ?
Re: [Ref. Vel. in Broken dam prob.]
This is an estimate of the frontal velocity. This may or may not help. You can derive it from the mass and momentum equations for a loss free flow, assuming a hydrostatic pressure distribution.
u_f = (1/sqrt(2))* (gh)^(0.5)
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