Irrigation Engineering
Fundamental momentum equation for a hydraulic jump, is

D₁² + D₂² = (2q/g) × (V₂ - V₁)
D₁² - D₂² = (2q/g) × (V₂ - V₁)
D₁² - D₂² = (2q/g) × (V₁ - V₂)
D₂² - D₁² = (2q/g) × (V - V₂)

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