Modified Pressure Fluent

gabriela_castro · August 28, 2018, 08:40

When a turbulent model, for example k-w, is used, a turbulent portion is incorporated into the pressure. When the Fluent presents the pressure results on the inside of a flow, does the software remove the modified part or is this result incorporated into the final pressure presented?

LuckyTran · August 28, 2018, 13:09

As far as I am aware, it is incorporated into the pressure and not removed. So that what you see is not the true thermodynamic pressure. I base this on the fact that the contribution from the turbulent kinetic energy doesn't appear in the governing equation when you look in the manual. But keep in mind this contribution is proportional to turbulent intensity squared.

August 28, 2018, 08:40	Modified Pressure Fluent	#1
gabriela_castro New Member Gabriela de Castro Almeida Join Date: Aug 2018 Posts: 2 Rep Power: 0	When a turbulent model, for example k-w, is used, a turbulent portion is incorporated into the pressure. When the Fluent presents the pressure results on the inside of a flow, does the software remove the modified part or is this result incorporated into the final pressure presented?

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August 28, 2018, 13:09		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 65	As far as I am aware, it is incorporated into the pressure and not removed. So that what you see is not the true thermodynamic pressure. I base this on the fact that the contribution from the turbulent kinetic energy doesn't appear in the governing equation when you look in the manual. But keep in mind this contribution is proportional to turbulent intensity squared.