How do I create a curved line or rake for releasing particles / obtaining data for comparison, etc, etc.?

There is an option under "injections" where in you can specify a file which has co-ordinates from where the particles should be released.

-Ajay

Thanks, but I'd laso like to examine results along a curved line. Any thoughts on how I generate this?

You could use the UDF's for DPM ( Discrete Phase model ) reffer the manual . Otherwise once you track a particle you can get the co-ordinates onto a file. Later you could write a UDF which access the file gets the co-ordinates and gives you the value of what ever you want at that location. -Ajay