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10-26-2018
09:28 AM

10-26-2018
09:28 AM

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

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10-26-2018
11:36 AM

10-26-2018
11:36 AM

Re: PDE Problem

Hi SavitriN,

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

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10-27-2018
06:33 AM

10-27-2018
06:33 AM

Re: PDE Problem

Hi SavitriN,

the following is a revised and corrected solution.

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10-27-2018
11:37 AM

10-27-2018
11:37 AM

Re: PDE Problem

Here's my simplified solution:

Alan

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10-29-2018
04:28 AM

10-29-2018
04:28 AM

Re: PDE Problem

Thank you very much!

I will try that

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10-29-2018
04:28 AM

10-29-2018
04:28 AM

Re: PDE Problem

Thank you for the response.

Yes i will try this solution as well.

Cheers

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10-30-2018
04:44 AM

10-30-2018
04:44 AM

Re: PDE Problem

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

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10-30-2018
05:48 AM

10-30-2018
05:48 AM

Re: PDE Problem

Hi SavitriN,

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

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