Specifying the pressure values for the Fan characteristic curve

saisanthoshm88 · June 6, 2011, 01:36

I'm totally new to FLUENT. I had a very newbie question in specifying the pressure values to the fan characteristic curve [using the Lumped parameter model].

From the user manual of FLUENT I found that - "All pressures that are specified and all pressures computed or reported by FLUENT are gauge pressures" and also that Absolute pressure = Operating pressure + gauge pressure.

So could some one please tell me whether the pressure values that are specified for the characteristic curves of the fan are gauge pressures (or) absolute pressures

kaktus10 · August 22, 2016, 09:45

I have the same question.
Please answer this question?

1994bm · December 2, 2016, 02:22

What fan curve normally includes is Pressure vs Flow rate. For that data to be used in the lumped parameter model, you have to convert it into pressure vs velocity. You can do that based on your duct area on which the fan is supposed to work.

June 6, 2011, 01:36	Specifying the pressure values for the Fan characteristic curve	#1
saisanthoshm88 Senior Member --------- Join Date: Oct 2010 Posts: 303 Rep Power: 17	I'm totally new to FLUENT. I had a very newbie question in specifying the pressure values to the fan characteristic curve [using the Lumped parameter model]. From the user manual of FLUENT I found that - "All pressures that are specified and all pressures computed or reported by FLUENT are gauge pressures" and also that Absolute pressure = Operating pressure + gauge pressure. So could some one please tell me whether the pressure values that are specified for the characteristic curves of the fan are gauge pressures (or) absolute pressures __________________ Best regards, Santhosh.

August 22, 2016, 09:45	I have the same question.	#2
kaktus10 New Member alireza esmaily Join Date: Dec 2014 Posts: 18 Rep Power: 11	I have the same question. Please answer this question?

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December 2, 2016, 02:22		#3
1994bm New Member Bhaskar Join Date: Feb 2015 Posts: 7 Rep Power: 11	What fan curve normally includes is Pressure vs Flow rate. For that data to be used in the lumped parameter model, you have to convert it into pressure vs velocity. You can do that based on your duct area on which the fan is supposed to work.