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Josyula December 22, 2009 05:22

Inputting pressure gradient in Fluent

I want to know how to input a pressure gradient in Fluent.

I have a straight horizontal rectangular minichannel and need a pressure gradient of 1500 Pa across the channel.

Is the pressure gradient calculated as the pressure at outlet (suppose 1800 Pa) minus pressure at the inlet (suppose 300 Pa)? Or how is it calculated?


anshulmittal1912 December 22, 2009 22:23

I think you mean pressure difference across the channel to drive the flow.
Yes, it is the pressure at inlet (1800) minus the pressure at outlet (300).


Josyula December 23, 2009 08:26


Thank you for your reply. I shall try as you suggested & see if it works.

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