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SavitriN1-Visitor
1-Visitor
October 1, 2018
Question

PDE solver problem

  • October 1, 2018
  • 4 replies
  • 2925 views

Hey all,

 

I'm trying to solve equations for concentration which change over space (x) and time (t)

I never work with PDE, usually only ODE. So of course it does not give results like i want.

Can you please help?

 

Thanks

This topic has been closed for replies.

4 replies

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-MFra-21-Topaz II
21-Topaz II
October 1, 2018

Hi,

You should upload the file again, because the download gives an error.

S
SavitriN1-VisitorAuthor
1-Visitor
October 1, 2018

Ah sorry, here i uploaded the file again.

R
rgunwaldsen15-Moonstone
15-Moonstone
October 1, 2018

Still download error. Perhaps you should 'zip' the file prior to upload?

W
Werner_E25-Diamond I
25-Diamond I
October 1, 2018

I don't experience any download errors - the file is perfectly OK concerning file integrity.

 

Maybe your systems don't like the comma in the file name!?

 

Here is the file - renamed and also zipped

 

L
LucMeekes23-Emerald IV
23-Emerald IV
October 1, 2018

Maybe this helps:

LM_20181001_PDEsolve.png

LM_20181001_PDEsolve1.png

LM_20181001_PDEsolve2.png

 

Success!
Luc

S
SavitriN1-VisitorAuthor
1-Visitor
October 2, 2018

Ah okay it seems way more complicated but sure i will try your approach.

Thank you

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-MFra-21-Topaz II
21-Topaz II
October 1, 2018

Hi SavitriN,

The way you set up the problem, it seems that you want a numerical solution. If so, all the values of the known terms, the initial and the boundary conditions are missing.

L
LucMeekes23-Emerald IV
23-Emerald IV
October 1, 2018

Once these values are supplied, the numerical solution can be obtained with pdesolve, and compared to the symbolic solution...

 

Luc

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