Flow versus Pressure

[jamesjm]

What is the relationship of flow and pressure in a given pipe and orifice. If you increase the pressure by 'x', what does the flow do?

 

[rbcoulter]

The flow increases by 'y'. :-D

Seriously, there is a relationship for orifices and one for pipes. Consult the Crane Technical paper No. 410.

 

[zdas04]

Even more seriously, what pressure are you talking about? If you are talking about choked flow in a compressible fluid and raise the downstream pressure (but stay low enough to sustain choked flow) then absolutely nothing happens.

If you are talking about flowing a liquid and raise the overall pressure (not the differential pressure) then again nothing happens.

Ask your question again in a manner that will provide a basis for an answer that adds value.

David