# Water Hammer Equations Formulas Design Calculator

## Fluid Mechanics Hydraulics Pipe Flow

Solving for flow velocity.

#### Inputs:

 pressure increase (P) pascal atmosphere bar dyne/centimeter^2 foot of water inch of mercury inch of water kilonewton/meter^2 millibar millimeter of mercury newton/meter^2 pound/foot^2 pound/inch^2 torr inlet pressure (Pi) pascal atmosphere bar dyne/centimeter^2 foot of water inch of mercury inch of water kilonewton/meter^2 millibar millimeter of mercury newton/meter^2 pound/foot^2 pound/inch^2 torr valve closing time (t) second century day decade hour millisecond minute week year upstream pipe length (L) meter attometer centimeter chain dekameter decimeter exameter femtometer foot gigameter hectometer inch kilometer light year link megameter micrometer micron mile millimeter nanometer petameter picometer rod terameter yard

 |

#### Conversions:

 pressure increase (P) = 0 = 0 pound/inch^2 inlet pressure (Pi) = 0 = 0 pound/inch^2 valve closing time (t) = 0 = 0 second upstream pipe length (L) = 0 = 0 foot

#### Solution:

 flow velocity (V) = HAS NOT BEEN CALCULATED

#### Other Units:

Change Equation
Select an equation to solve for a different unknown

 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.

by Jimmy Raymond