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Interpolation of the data in each element
Posted Jan 13, 2011, 3:52 a.m. EST Results & Visualization Version 3.5a, Version 4.1 0 Replies
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I have just a question about Comsol :
So far, I used the software CATIA to solve my PDE.
The different steps are very easy :
- first : the PDE is multiplied by a test function w. A weak form Is obtained
by using Green's theorem,
- the geometry is discretized then in each element of the mesh, the unknown u and w
are developped in a polynoms set.
-We obtain an equations system where the
unknowns are now the value of u in each nodes
of the mesh,
- this system then is solved.
In this way, the solution u is interpoled in each element of the mesh
and this solution is not a constant in this element.
Why in COMSOL, in the visualization step, we obtain
always a constant solution in each element ?
Does COMSOL do an average of u of the value at the nodes of the element to show
the result ? How can I obtain the interpoled solution in each element ? The previous polynom are used ?
The COMSOL's books do not explain this
procedure...
Thank you for your ideas
D. S
Hello Daniel Smouthie
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