I am willing to solve a problem concerned with flowing nanofluid particles in water as a Two-phase flow problem utilizing Comsol Multiphiscis within a 2D pipe exposed on its walls to a fixed heat flux. I am wondering which model to use for this problem? Should I use the Mixture model alone or the Non-isothermal mixture model? Any reply is highly appreciated. Moreover, if there is any available example, I will be grateful for that.
Regards,
Khalid