Re: [ff3d-users] Boundary condition

[Stephane Del Pino]

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On Sunday 02 November 2003 19:27, Michael Bock wrote:
> Hello,
>
> I would like to implement a boundary condition like this:
>
>  lambda * dT/dz = k*(T^4- beta).
>
> Its the Stefan Bolzman equation.
>
> I only found the Robin boundary in the doc. Robin allows T^1 only.
>
> Any ideas ?

Hello.

You are right, only Robin conditions are allowed! ff3d basics can only solve 
*linear* problems!

But this is not a problem. We solved this kind of problem with ff3d two years 
ago. The idea is to write a fixed point problem (ie: solve multiple 
problems):

Tn = To
while (not converge)
do
  dT/dz = C*(T*(Tn)^3-beta)
  Tn = T
done


Best regards,
Stephane.
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