boundary conditions
 

can anyone plz help me......i defined one of my faces as interior in gambit but in in fluent it is showing as wall.....how can i solve this problem piyush

Re: boundary conditions
 

read help files regarding heat exchanger models

Re: boundary conditions
 

hiii actually m solving a heat exchanger problem......its a 1-2 pass heat exchanger......how can i make the flow to pass through the tubes....the tubes are not connected.....plz help me out..... thanx in advance......i hav gone thru the help files but m not getting anythin........plz help piyush

Re: boundary conditions
 

Hi piyush, i think i have the same problem with radiation. uv radiation born from a lamp in the air but doesn't pass throught a tube (made by teflon). How can i define the tube? as wall? interior?

Re: boundary conditions
 

two-side wall is needed to let the radiation or heat transfer to the wall. Ferdinando, see you e-mail.

Re: boundary conditions
 

make sure that all the surrounding subvolumes are meshed.