Reply To: Adjusting Pressure Drop in Condensation Model (Lee and Mixture Model)

[hurch346]

Thank you for your response,

I am confident that the model is correct, as I have verified mesh independence, and my temperature and condensation measurements are within 5-20% of the model values over a range of conditions.

I believe my model doesn't take the interaction between the condensation film and the bulk air into account. In the experiment, the condensation is drop-wise, so there is a complex interaction between the air and condensate droplets, increasing the pressure drop relative to a duct with no condensation. 

Ideally, it would be nice for the model to account for this, but I assume it would take a lot of computational power and time, so the second best option for me would be to manually tune the pressure drop. I have tried the more complex Eulerian-Eulerian model, which solves for the momentum of both phases, however, this did not change my results at all so I am unsure how to progress the model at this stage. 

Would you have any ideas on how to either manually increase the pressure drop, or how to make the model account for the condensation-air interactions?

 

Thank you