Modeling Acid addition in a tank
 

Hi All,
I am trying to model the pH changes in a tank filled with water associated with the addition of 1M acetic acid. Does anyone have any experience modeling this in Fluent. I have tried the species model to get initial flow profiles and such, but we have converged on a specific design and flow rate of acid addition and now we would like to model the actual reaction mechanism and dispersion and get the real pH profiles.
Any experience in any acid base reactions will be helpful.
thanks,
Suresh.