Timeline for Solving diffusion-like PDE for f(r,t)
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 30, 2015 at 13:59 | history | edited | xyz | CC BY-SA 3.0 |
added 22 characters in body
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| Nov 30, 2015 at 11:44 | answer | added | Dr. Wolfgang Hintze | timeline score: 8 | |
| Nov 29, 2015 at 23:19 | comment | added | dowlguest | You may be able to eliminate the divide by 0 error at the center by multiplying your equation by r. If so this could allow you to use 0 as the boundary instead of 10^-9. | |
| Nov 29, 2015 at 23:03 | comment | added | user21 | Please put your code in the question such that it can be copied and pasted. | |
| Nov 29, 2015 at 22:15 | comment | added | Sanha Cheong | I am no expert in scientific computing, but the fact that the range of r influences the answer so drastically seems to imply that, in the process of NDSolve, there is a step where the function gets integrated over the domain of r or gets evaluated at the end-points. I guess the value of the end points or the definite integration is too small past 12 and the numerical calculation explodes at some step, and therefore loses the information about the IC or the BC? Is this guess somewhat accurate? | |
| Nov 29, 2015 at 22:07 | review | First posts | |||
| Nov 29, 2015 at 23:03 | |||||
| Nov 29, 2015 at 22:06 | history | asked | Sanha Cheong | CC BY-SA 3.0 |