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4324
5 Pounds per Square Inch
300mm is a very low head, you can't expect much flow through that pipe, but you can work it out from the mechanical energy balance equation.
venturimeter, orificemeter are some of the instruments used to measure the flow rate in pipe.
To provide an answer to this question the pressure of the fluid applied at the input end of the pipe must be provided.
Water flow rate half inch PVC pipe 65 psi?
2.5 gallons per minute
4324
It reduces the flow rate.
5 Pounds per Square Inch
80 gpm
what is the discharge flow of 10m/s passing from 2ft pipe
We need to know what pipe material will be used.
For laminar flow? For a full pipe? for a 3/4-full pipe? For a 1/2-full pipe? It all makes quite a difference. Please repost your question with a little more information. It would also help to for us to know the coefficient of friction of the inside of the pipe.
In order to effectively answer this question more factors would need to be known. The most important factor being the type of liquid flowing through the pipe. Different liquids have a different rate of flow, even with varying elevations.
At constant pressure and constant fluid density, larger pipe results in larger flow rate.
300mm is a very low head, you can't expect much flow through that pipe, but you can work it out from the mechanical energy balance equation.