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How to solve 4th PDE in postprocessing

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.

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Re: How to solve 4th PDE in postprocessing

I doubt the elements have so high order, which means the fourth order derivative will be zero. -- Pu, ZHANG DTU Fotonik

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Re: How to solve 4th PDE in postprocessing

I find that d function is 2nd order. Did you have a way to solve 4th order deviate? Thanks.

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Re: How to solve 4th PDE in postprocessing

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

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How to solve 4th PDE in postprocessing

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.

View Article


Re: How to solve 4th PDE in postprocessing

I doubt the elements have so high order, which means the fourth order derivative will be zero. -- Pu, ZHANG DTU Fotonik

View Article

Re: How to solve 4th PDE in postprocessing

I find that d function is 2nd order. Did you have a way to solve 4th order deviate? Thanks.

View Article

Re: How to solve 4th PDE in postprocessing

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

View Article

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