Hi,
Well unfortunately there is not a lot of performance data available now. I will try to attaché what I have. Just Flight wont permit me to copy files, but here is a link to one set of data.
There are still operators of the 146/RJ, you could try contacting them, I'm sure they would help with a university project.
You could also try contacting BAE Systems.
i must admit from the point of view of the Spreadsheet I have been testing the performance calculations against the Just Flight aircraft as that is the only option I have. but I'm pretty confident, based on the historical routes operated that Just Flight have done an excellent job.
If the link doesn't work try searching for "RJ Technical Data at a glance".
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.aviation-broker.com/fileadmin/user_upload/jetxchange/flugzeugmodelle/general/RJ_Tech_data_at_a_glance__April_2004.pdf
Good Luck
