In addition I would like to know why we have 3K instead of K. Some literature is welcomed. As far as I understand, K is only in one direction and hence we have a volume we need 3 times K (x, y and z). Can someone proof this?
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Hi guys,
now I got the point (thanks to Philip Cardiff). First the displacement is based on the thermal stress: It is clear that in the momentum equation we have the divergence of that term and hence we get the gradient. So the displacement is based on grad(T) but the stress is related on (T-T0). The tutorial in the foam extend is wrong (Philip confirmed this).
Then you should get the same results than the analytical one. About the traction BC, Philip refer to his thesis https://www.researchgate.net/publica...tress_Analysis |
Hi all,
I forgot a very important thing. Philip mentioned that the bug that he realized Nov-14 still exist... see here: http://www.cfd-online.com/Forums/ope...tml#post519288 To get the analytical solution, you need to change that too. |
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