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PDE Problem

SavitriN
8-Gravel

PDE Problem

Hey guys,

 

Now i'm trying to model the concentration in respect of time and space and that's why i'm using PDE solver. However why it does not work and it gave en error that "it found singularity while evaluating the expression.

Help please :(((

7 REPLIES 7
-MFra-
21-Topaz I
(To:SavitriN)

Hi SavitriN,

it is better to simplify everything......The following  solution isn't tested:

SavitriN 01.jpg

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

Hi SavitriN,

the following is a revised and corrected solution.

SavitriN 01.jpg

Thank you very much!

I will try that 🙂

The difference between the file 1 and file 2 that you sent is in the argument you put in the PDE solver. But is that affecting the result?

Because i'm trying your second file and it seems like it does not work again 😞

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

Hi SavitriN,

sorry, in the solve block the derivatives must be written in the compact form:

SavitriN2.jpg

 

AlanStevens
15-Moonstone
(To:SavitriN)

Here's my simplified solution:

 

integ1.PNGinteg2.PNG

Alan

 

 

Thank you for the response.

Yes i will try this solution as well.

Cheers

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