How can I simulate a rotameter float to change height using Comsol?

[sohel0402034]

i am working with making a rotameter in comsol.i want to make a calibration curve (height of float vs. flow rate).

https://www.physicsforums.com/attachments/21281

https://www.physicsforums.com/attachments/21282

i failed to move the solid float through the pipe with velocity.how i can define the solid float in comsol? when i will give flow at bottom then how i can simulate the float to change the height. i have the necessary equation but i failed how i can change the position of the float??

its urgent please help...

 

[berkeman]

i am working with making a rotameter calibration curve (height vs. flow rate).

C:\Documents and Settings\sohel\Desktop\1.jpg
C:\Documents and Settings\sohel\Desktop\2.jpg

i failed to move the float through the pipe with velocity.when i will give flow at bottom then how i can simulate the float to change the height. i have the necessary equation but i failed how i can change the position of the float??

its urgent please help...

Your image uploads did not appear to work. I think for images, they need to be hosted on a website and linked to with the image tags. Maybe try uploading them as attachments instead...