wall tangential temperature gradient

apatronis · May 7, 2013, 17:33

Hi all,

Does anyone know how to apply a temperature gradient along the walls of a simple channel (so wall temperature varies in the streamwise direction). I'm looking at using rhoCentralFoam to simulate a surface temperature gradient driven gas flow. Can I manage this with groovyBC?

Thanks

fredo490 · May 8, 2013, 02:53

What you want is a boundary condition with a variable value depending of the position ?

I don't know if OF has a derived boundary able to do this. Usually people use the "swak4foam" library to perform this kind of special boundary. You can use the groovyBC, google will help you.

The official website is here : http://openfoamwiki.net/index.php/Contrib/swak4Foam
And an example is here : http://openfoamwiki.net/index.php/Contrib_groovyBC

apatronis · May 8, 2013, 06:23

Thanks Frédéric.

May 7, 2013, 17:33	wall tangential temperature gradient	#1
apatronis New Member Join Date: Mar 2012 Posts: 2 Rep Power: 0	Hi all, Does anyone know how to apply a temperature gradient along the walls of a simple channel (so wall temperature varies in the streamwise direction). I'm looking at using rhoCentralFoam to simulate a surface temperature gradient driven gas flow. Can I manage this with groovyBC? Thanks

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May 8, 2013, 02:53		#2
fredo490 Senior Member HECKMANN Frédéric Join Date: Jul 2010 Posts: 249 Rep Power: 16	What you want is a boundary condition with a variable value depending of the position ? I don't know if OF has a derived boundary able to do this. Usually people use the "swak4foam" library to perform this kind of special boundary. You can use the groovyBC, google will help you. The official website is here : http://openfoamwiki.net/index.php/Contrib/swak4Foam And an example is here : http://openfoamwiki.net/index.php/Contrib_groovyBC

May 8, 2013, 06:23		#3
apatronis New Member Join Date: Mar 2012 Posts: 2 Rep Power: 0	Thanks Frédéric.