Menu

Discussion Forum

New Discussion
Filtern

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.

Time Dependent Boundary Condition...

Posted 28.02.2010, 23:53 GMT-5 3 Replies

Edwin Insuasty
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi...I'm working with the Heat Transfer Module, and I need to implement a time varying boundary condition (The temperature in one wall changes in time). I have experimental data of the temperature (boundary condition) in form of an array, and of course and array of time (sample time).

Can I implement a time dependent boundary condition in a form of array (Temperature vs Time)???

Edwin
3 Replies Last Post 26.05.2011, 03:55 GMT-4
COMSOL Moderator

Hello Edwin Insuasty

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Jorge Arturo Soto Puente
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 28.04.2010, 16:20 GMT-4
Hi Edwin, i'm working with the crystallization of polyethylene.
The growthvelocity in one of the boundaries changes with the temperature.
The temperature is a time dependent condition because the polymer is cooling.
Could you help me to change the T as a function of the time.

Thanks a lot

Jorge SOTO
Hi Edwin, i'm working with the crystallization of polyethylene. The growthvelocity in one of the boundaries changes with the temperature. The temperature is a time dependent condition because the polymer is cooling. Could you help me to change the T as a function of the time. Thanks a lot Jorge SOTO
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29.04.2010, 02:15 GMT-4
Hi

for me you shold be able to replace any cnstatn value by a function be it analytical (time dependent) or piecevise developed based on data points.

Try it out on a very simple case in th to convince yourself

Have fun Comsoling
Ivar
Hi for me you shold be able to replace any cnstatn value by a function be it analytical (time dependent) or piecevise developed based on data points. Try it out on a very simple case in th to convince yourself Have fun Comsoling Ivar
Gábor Járvás
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 26.05.2011, 03:55 GMT-4
Hi Boys,

let's check it out:

courses.cit.cornell.edu/bee4530/miniexamples/timevary_comsol.pdf

Gabor
Hi Boys, let's check it out: courses.cit.cornell.edu/bee4530/miniexamples/timevary_comsol.pdf Gabor

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content