Hi I would like to simulate an ammonia stripping tower with FlexPDE. Do you know any site or do you make similar project? Please help me.. Thanks,

I am not sure what an ammonia stripping tower is, but I know the FlexPDE software comes with many examples. Perhaps one of them can be adapted to your needs. I also have some examples on my web site (www.homestead.com/flexpde) including one with reacting flows. Good luck.