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Forum: OpenFOAM

May 21, 2010, 02:45

Replies: 12

Problem with zeroGradient wall BC for temperature - Total temperature loss

Views: 8,019

Posted By cboss

Chris, Johannes, to look at the energy...

Chris, Johannes,

to look at the energy equation, an perhaps also at the thermophysical model, seems to be a good idea.
I also agree, that the hEqn is solved for static enthalpy, as I cannot find...

Forum: OpenFOAM

May 17, 2010, 11:26

Replies: 12

Problem with zeroGradient wall BC for temperature - Total temperature loss

Views: 8,019

Posted By cboss

Nice to get a reply on this problem. To answer...

Nice to get a reply on this problem.
To answer your question first. For the latest tube calculation the relaxation factors were:

relaxationFactors
{
p 0.125;
U ...

Forum: OpenFOAM

May 17, 2010, 02:59

Replies: 12

Problem with zeroGradient wall BC for temperature - Total temperature loss

Views: 8,019

Posted By cboss

Short update. The zeroGradient wall BC for the...

Short update. The zeroGradient wall BC for the temperature seems not to be the problem. Last week I did a tube calculation and set the wall temperature to inlet total temperature. There is still a...

Forum: OpenFOAM

May 6, 2010, 07:11

Replies: 12

Problem with zeroGradient wall BC for temperature - Total temperature loss

Views: 8,019

Posted By cboss

Problem with zeroGradient wall BC for temperature - Total temperature loss

For quite a time I have some problems with adiabatic walls, which we set as 'zeroGradient' for temperature BC. If the total Temperature is calculated with Ttot=T+0.5*mag(U)^2/cp, it does not stay...

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