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groovybc and heat flux on wall

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Old   October 2, 2013, 16:23
Default groovybc and heat flux on wall
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mohsen kh
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hi dear foamers

As I had no experience in using groovy bc I need your helps again.
How should I define this boundary condition on wall of my case?

k(dT/dx,y,z)=h(T-Tinf)

k=0.065
h=1.12
Tinf=298

how should I use swak4foam?
where should I define these constant for my incompressible flow?
would you please give me hints?????

best regards
Mohsen
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Old   October 3, 2013, 02:23
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mohsen kh
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no one has any idea?
should I add somthing like groovybc to my case directory?


type groovyBc;
variables "h=1.12;k=0.065;Tinf=298;";
gradientExpression "h/k*(T-Tinf)";
fractionExprssion "0"; // 0 for neumann boundary condition
value uniform 298;

I'm looking forward for your good hints friends
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Old   October 3, 2013, 02:35
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Nima Sam
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Dear Mohsen,
those questions are simple ones and answered alot in forums, look at this thread
and also your configurations seems right to me
Quote:
type groovyBc;
variables "h=1.12;k=0.065;Tinf=298;";
gradientExpression "h/k*(T-Tinf)";
fractionExprssion "0"; // 0 for neumann boundary condition
value uniform 298;
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Old   October 3, 2013, 14:19
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mohsen kh
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Quote:
Originally Posted by nimasam View Post
Dear Mohsen,
those questions are simple ones and answered alot in forums, look at this thread
and also your configurations seems right to me
thanks Nima yes it is right and you are right too
I forgot to add some lines to control dict
thanks
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