A positive surge wave, or moving hydraulic jump, can be produced in the laboratory by suddenly opening a sluice gate. Consider a surge of depth \(y_{2}\) advancing into a quiescent channel of depth \(y_{1}\). Obtain an expression for surge speed in terms of \(y_{1}\) and \(y_{2}\)

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y1 Vsurge Quiescent fluid P11.32 32