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 The information provided may be out of date.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.

integration

Please login with a confirmed email address before reporting spam

hi,
i am doing work on 4th order differential equations and fro that i got a solution in which function is k*dy/dx*dy/dt
now i need to integrate this over length only to find out some force. can you please help me in this, i am not able to do it.
thanks
hemant

3 Replies Last Post 2011年8月31日 GMT-4 01:21

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年8月29日 GMT-4 16:11
Integrate k*yx*yt on the segment you are interested in.
Integrate k*yx*yt on the segment you are interested in.

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年8月30日 GMT-4 03:11
how to do it
can you please tell me the procedure
how to do it can you please tell me the procedure

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年8月31日 GMT-4 01:21
Look in the comsol help for following topics:
1. Defining an Integration Model Coupling
2. Defining Model Couplings
3. Acoustics of a Muffler (example)
Look in the comsol help for following topics: 1. Defining an Integration Model Coupling 2. Defining Model Couplings 3. Acoustics of a Muffler (example)

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.