How does the Phoenics define the holes of the building?

YaX · May 7, 2015, 02:25

Hi Hi,

I am doing simulaton for a stack ventilation in a high building. I have tried to set the window as Opening, Inlet and default setting. I just wonder how the Phoenics define the holes in simulation?

David-G · July 24, 2015, 12:16

You probably want to specify the holes as fixed-pressure boundaries. For that purpose you should use "Openings". It will probably be helpful to set the reference density appropriately, this has the effect of removing the pressure variation with height; this is important, so that the external pressure at all the holes will be the same.

May 7, 2015, 02:25	How does the Phoenics define the holes of the building?	#1
YaX New Member Ya Join Date: Jun 2014 Posts: 10 Rep Power: 11	Hi Hi, I am doing simulaton for a stack ventilation in a high building. I have tried to set the window as Opening, Inlet and default setting. I just wonder how the Phoenics define the holes in simulation?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Re: scalar transport equation problem	Benny	FLUENT	5	March 22, 2018 13:28
UDF carbon conversion	papteo	Fluent UDF and Scheme Programming	1	August 18, 2011 07:32
How can I get Help? Scalar transport_source term	lig	Fluent UDF and Scheme Programming	0	May 9, 2010 22:30
Free surface boudary conditions with SOLA-VOF	Fan	Main CFD Forum	10	September 9, 2006 12:24
UDF FOR UNSTEADY TIME STEP	mayur	FLUENT	3	August 9, 2006 10:19

July 24, 2015, 12:16		#2
David-G New Member David Join Date: Mar 2014 Posts: 8 Rep Power: 12	You probably want to specify the holes as fixed-pressure boundaries. For that purpose you should use "Openings". It will probably be helpful to set the reference density appropriately, this has the effect of removing the pressure variation with height; this is important, so that the external pressure at all the holes will be the same.