Calculating Water Flow into a Pipe

AI Thread Summary
A user seeks assistance in calculating the water flow rate entering a 40mm hole in a gas pipe due to a burst water pipe exerting 4000 millibar pressure. They reference Bernoulli's law and the equation Q = A x v but are unsure if it applies. Another participant advises prioritizing the immediate safety concern of the gas leak over calculating water flow, suggesting to turn off the gas and fix the pipe first. The discussion highlights the urgency of addressing the gas leak rather than focusing on flow rate calculations. Safety should be the primary concern in such situations.
Bob_
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Hi all,

I have a practical problem at work that I need some help with please!

In the ground, there is a gas pipe that runs alongside a burst water pipe. There is a hole in the gas pipe of approx 40mm in diameter, and the water is blasting the hole with constant water pressure of 4000 millibar.

Any idea how to work out rate of water flow entering the hole in the gas pipe?

Any help much appreciated! The only comparable problems I can find on the net are rate of water leaking out of a hole in a bucket that is full with water (bernoulli's law). Can this equation be used too? Q = A x v?
 
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A gas :eek: pipe with a 40 mm hole!*#?:eek:

Are you any relation to bob the builder?
 
Studiot said:
A gas :eek: pipe with a 40 mm hole!*#?:eek:

Are you any relation to bob the builder?

hahaha yeah
why on Earth are you fixated on a water flow when you have a huge hole in a gas pipe ?
forget the water flow rate, it isn't important to your problem, turn it off and get the gas pipe fixed then get the water main fixed

Dave
 

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