What BC should I set for door?

February 18, 2005, 15:37

I am simulating airflow among several rooms, what BC should I set for a door between two rooms? I know I do not need to set any BC for the internal door. But I set the door BC anyway to make an easy calculation in Post.

Should I use an opening, static pressure=0,turbulence option: low (1%)?

Thanks in advance.

February 18, 2005, 18:26

Opening

February 22, 2005, 13:40

Thank. But I tried opening,inlet and outlet, none of them worked in CFX 5.7 for an internal door (CFX-Pre complained). After I deleted it, everything is fine.

February 23, 2005, 04:53

you cannot have a boundary (like opening, or inlet) inside the domain!

If you want to monitor the variables or mass fluxes, you have to do it without the boundary conditions.

matej

February 24, 2005, 14:12

Thanks. However, it would be nice if CFX allows such a "boundary" just for postprocessing purpose.

February 18, 2005, 15:37	What BC should I set for door?	#1
CFX5.7User Guest Posts: n/a	I am simulating airflow among several rooms, what BC should I set for a door between two rooms? I know I do not need to set any BC for the internal door. But I set the door BC anyway to make an easy calculation in Post. Should I use an opening, static pressure=0,turbulence option: low (1%)? Thanks in advance.

February 18, 2005, 18:26	Re: What BC should I set for door?	#2
Akin Guest Posts: n/a	Opening

February 22, 2005, 13:40	Re: What BC should I set for door?	#3
CFX5.7User Guest Posts: n/a	Thank. But I tried opening,inlet and outlet, none of them worked in CFX 5.7 for an internal door (CFX-Pre complained). After I deleted it, everything is fine.

February 23, 2005, 04:53	Re: What BC should I set for door?	#4
matej Guest Posts: n/a	you cannot have a boundary (like opening, or inlet) inside the domain! If you want to monitor the variables or mass fluxes, you have to do it without the boundary conditions. matej

February 24, 2005, 14:12	Re: What BC should I set for door?	#5
CFX5.7User Guest Posts: n/a	Thanks. However, it would be nice if CFX allows such a "boundary" just for postprocessing purpose.

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