cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

Community Tip - You can subscribe to a forum, label or individual post and receive email notifications when someone posts a new topic or reply. Learn more! X

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 II
(To:SavitriN)

Hi SavitriN,

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

SavitriN 01.jpg

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

Hi SavitriN,

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

SavitriN2.jpg

 

Here's my simplified solution:

 

integ1.PNGinteg2.PNG

Alan

 

 

Thank you for the response.

Yes i will try this solution as well.

Cheers

Announcements

Top Tags