multiphase model for evaporation with volatility
 

i have a fuel evaporation problem in a closed tank that is filled with fuel liquid, fuel vapor and air. In FLUENT, there are three models for evaporation such that VOF, Mixture model, and the most complex Eulerian model. I am planning to solve the fuel evaporation including fuel's volatility. Which model is best in Fluent or any other package to recommend to solve it?

thanks, regards.