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PDE solver problem

SavitriN
8-Gravel

PDE solver problem

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

9 REPLIES 9
-MFra-
21-Topaz II
(To:SavitriN)

Hi,

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

Ah sorry, here i uploaded the file again.

rgunwaldsen
15-Moonstone
(To:SavitriN)

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

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

 

LucMeekes
23-Emerald III
(To:SavitriN)

Maybe this helps:

LM_20181001_PDEsolve.png

LM_20181001_PDEsolve1.png

LM_20181001_PDEsolve2.png

 

Success!
Luc

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

Thank you

-MFra-
21-Topaz II
(To:SavitriN)

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.

LucMeekes
23-Emerald III
(To:-MFra-)

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

 

Luc

Yes, i do need the numerical solution. And on the original file i have the value for everything,

but it does not work..

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