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How to solve 4th PDE in postprocessing

Posted Apr 2, 2014, 4:11 a.m. EDT Low-Frequency Electromagnetics Version 4.3b 3 Replies

Stone Hudson
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When I use Electric currents module, I want to solve 4th order PDEs in this postprocessing. For example, d(d(d(d(V,x),x),x),x). But it didn’t work.

Please give me some advise. Thanks.
3 Replies Last Post Apr 3, 2014, 2:23 a.m. EDT
Pu
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Posted: 1 decade ago Apr 2, 2014, 10:41 a.m. EDT
I doubt the elements have so high order, which means the fourth order derivative will be zero.

--
Pu, ZHANG
DTU Fotonik
I doubt the elements have so high order, which means the fourth order derivative will be zero. -- Pu, ZHANG DTU Fotonik
Stone Hudson
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Posted: 1 decade ago Apr 2, 2014, 10:33 p.m. EDT
I find that d function is 2nd order. Did you have a way to solve 4th order deviate?

Thanks.
I find that d function is 2nd order. Did you have a way to solve 4th order deviate? Thanks.
Pu
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Posted: 1 decade ago Apr 3, 2014, 2:23 a.m. EDT
One way is to introduce an intermediate variable.

--
Pu, ZHANG
DTU Fotonik
One way is to introduce an intermediate variable. -- Pu, ZHANG DTU Fotonik

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