Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
What's the noise like result caused by?
Posted 15 feb 2012, 18:11 GMT-5 Version 3.5a 2 Replies
Please login with a confirmed email address before reporting spam
As attached is the simulation result from solving PDE. It has strong noise like feature. This result is definitely not satisfactory. Does anybody has similar experience? What caused this kind of result?
Thanks for any hint!
Thanks for any hint!
Attachments:
2 Replies Last Post 16 feb 2012, 03:41 GMT-5
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
if you do not tell a bit moe, and add a scale its really difficult for us to propose anything, apart it's a nice rainbow type artwork ;) It looks like numerical noise around your mesh density. Sometimes its worth to turn on Wireframe and turn off the smoothing to check what is happening at mesh level directly
--
Good luck
Ivar
if you do not tell a bit moe, and add a scale its really difficult for us to propose anything, apart it's a nice rainbow type artwork ;) It looks like numerical noise around your mesh density. Sometimes its worth to turn on Wireframe and turn off the smoothing to check what is happening at mesh level directly
--
Good luck
Ivar
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Thanks for the suggestion!
I did exactly what you suggested, and found it is due to too low density of mesh. It seems I always need to have an estimation of the solution behavior, so that at least proper mesh density can be applied.
I did exactly what you suggested, and found it is due to too low density of mesh. It seems I always need to have an estimation of the solution behavior, so that at least proper mesh density can be applied.