# Water Hammer Equations Formulas Design Calculator

## Fluid Mechanics Hydraulics Pipe Flow

Solving for water velocity change.

#### Inputs:

 maximum surge pressure (Psurge water) pascalatmospherebardyne/centimeter^2foot of waterinch of mercuryinch of waterkilonewton/meter^2millibarmillimeter of mercurynewton/meter^2pound/foot^2pound/inch^2torr
 acceleration of gravity (g) meter/second^2centimeter/day^2centimeter/hour^2centimeter/minute^2centimeter/second^2foot/day^2foot/hour^2foot/minute^2foot/second^2inch/second^2kilometer/day^2kilometer/hour^2kilometer/minute^2kilometer/second^2knot/secondmeter/day^2meter/hour^2meter/minute^2mile/day^2mile/hour^2mile/minute^2mile/second^2millimeter/second^2yard/second^2
 pressure wave velocity (a) meter/secondcentimeter/hourcentimeter/secondfoot/dayfoot/hourfoot/minutefoot/secondinch/dayinch/hourinch/minuteinch/secondkilometer/daykilometer/hourkilometer/minutekilometer/secondknotmach sea level 15 Cmeter/daymeter/hourmeter/minutemile/daymile/hourmile/minutemile/secondmillimeter/secondspeed of light in vacuumyard/second

#### Conversions:

 maximum surge pressure (Psurge water)= 0 = 0pound/inch^2
 acceleration of gravity (g)= 0 = 0foot/second^2
 pressure wave velocity (a)= 0 = 0foot/second

#### Solution:

 water velocity change (ΔV)= NOT CALCULATED

#### Other Units:

Change Equation
Select to solve for a different unknown
maximum surge pressure head
 maximum surge pressure head in length of fluid pressure wave velocity fluid velocity change acceleration of gravity
maximum surge pressure for a fluid
 maximum surge pressure for a fluid pressure wave velocity fluid velocity change unit weight of fluid acceleration of gravity
maximum surge pressure for water
 maximum surge pressure for water pressure wave velocity water velocity change acceleration of gravity
water hammer pressure increase
 pressure increase flow velocity upstream pipe length valve closing time inlet pressure

References - Books:
National Resources Conservation Service. National Engineering Handbook. 1995. United States Department of Agriculture.

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By Jimmy Raymond

Contact: aj@ajdesigner.com