Water Hammer - Pressure Increase, Flow Velocity, Pipe Length Formula - Fluid Mechanics

Formula:

P = ((0.07 × V × L) / t) + Pi
V = ((Pi - P) × t)/(0.07 × L)
L = ((Pi - P) × t) / (0.07 × V)
t = ((0.07 × V × L) / (P - Pi)
Pi = P - ((0.07 × V × L) / t)


Where,

P = Pressure Increase
V = Flow Velocity
L = Upstream Pipe Length
t = Valve Closing Time
Pi = Inlet Pressure

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