counter current, DPM
 

Hi, i'm working on a problem with counter current twophase flow in a tube ( using water vapor and water liquid droplets).
i'm using DPM. i want to desuperheat the superheated water vapor with spraying water liquid.
water liquid enters from outlet and water vapor enters from inlet.
how can i model counter current in DPM?
& how can i fix the "turbulent viscosity limited" problem??

You could try to use two phases as water liquid and water vapor, then set the droplet as particle type in DPM model to set the evaporating model as fluent tutorial 17. "Modeling evaporating liquid spray".
http://www.engr.uconn.edu/~barbertj/...2012/tut17.pdf