Searching free trial version of T2VOC！（THANKS!）

hello everybody：

          I am a college student in the China university of geosciences（Beijing） ,my thesis will use T2VOC software to simulate the migration of organic matter in groundwater, so I want to know  if  the software of T2VOC have free trial version for students? Or there are other students simulation software that can free trial of DNAPL phase contaminants in groundwater flow ?

       Looking forward to your help！

My email is yangzhuze@163.com.