Sorry to be asking so many questions, but I've hit yet another
hurdle. This is sort of a continuation of my laser heating problem.
Thanks to the mailing list I was able to obtain the correct
temperature distribution, but the next part of the problem is to use
that temperature distribution to calculate a thermo-elastic
expansion given by  where u is a displacement vector of the sample surface. The first term looks like a diffusion term and the last term looks like a source, but the middle term has the divergence and gradient reversed from the convection case so I don't know how to represent it. Divergence of a gradient should give a scalar, but gradient of a divergence should give a vector. I think I should define u as CellVariable(mesh=m, hasOld=True, value=[[0.], [0.]], elementshape=(2,))And the right side as 2*a*(1+v)*T.grad or 2*a*(1+v)*T.faceGradBut I can't find a way to write out the full equation that doesn't produce errors. How would you set up the left side? Thanks again, Adam |
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