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 The information provided may be out of date.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.

Ulrasound contrast agent radius change over the a time period

Please login with a confirmed email address before reporting spam

Hi

I am new to COMSOL. I am currently working on UCA modeling but I have this issue.

I have this model in which there are 3 domains.

1 elastic shell(200nm thick 2micron radius)
2 air inside the shell
3 water which has 1and 2 inside(10 micron radius)

B.C
point source at center (0,0,0)
spherical wave radiation on domain3

I was able to plot 1d point graph and find its natural frequncy by frequency sweep using frequency domain just like the way this paper shows

www.comsol.com/papers/2523/



for next step I'd like to plot radius and other quantities (e.g., pressure) vs. time for constant frequency and amplitude of the acoustic forcing using 1d point graph

but when I choose time domain I cannot seem to find power source that apply a constant sinusoidal wave to the model.

Thank you in advance.


Aki


0 Replies Last Post 2012年3月20日 GMT-4 13:49
COMSOL Moderator

Hello Akihiko Ohnaka

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.

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.