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I need to work out a flow rate of a fire hydrant in Liters per second.

I know the pressure is 3.5bar and the pipe diameter is 100mm

Any help would be appreciated

Thanks

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- Thread starter Dominic Pew
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- #1

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I need to work out a flow rate of a fire hydrant in Liters per second.

I know the pressure is 3.5bar and the pipe diameter is 100mm

Any help would be appreciated

Thanks

- #2

BvU

Science Advisor

Homework Helper

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Hello Dominic, welcome to PF :)

You might need a bit more information to get a sensible answer.

See e.g.__this calculator__ and what it all needs to calculate a pressure drop

My advice would be to read up a bit on fluid flow , e.g.__http://udel.edu/~inamdar/EGTE215/Laminar_turbulent.pdf [Broken]__

You might need a bit more information to get a sensible answer.

See e.g.

My advice would be to read up a bit on fluid flow , e.g.

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- #4

BvU

Science Advisor

Homework Helper

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The 3.5 bar will most likely also drop when it's opened.

Selected parts from

And a

[edit] forgot to insert the calculator link. done that now.

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