Ansys Learning Forum Forums Discuss Simulation Fluids How to setup multiphase mixture? (simulating incubation of agar) Reply To: How to setup multiphase mixture? (simulating incubation of agar)

pp2278
Subscriber

Thanks for the feedback. I watched videos explaining multiphase models and water evaporation-condensation. My main question is, would the evaporation-condensation model correctly simulate the dew that appears during incubation. The evaporation-condensation models uses temperature values to assess when to change phases of the liquids. But the temperature in our experiments is around 35 degrees celsius and changes very slightly. The condensation occurs because the air inside the petri dishes is at 100% relative humidity (caused by the agar and water inside), and when the temperature in the petri dish lowers (caused by conduction and convection with the petri dish beneath it which is colder), the dew point is breached and dew is formed on the bottom half of the petri dish. Can Ansys Fluent simulate that correctly, using only multiphase modeling, and evaporation-condensation between phases? If not, can I use other models or UDFs to model the relative humidity and consequent condensation?Â