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

[Rob]

Assuming you're using a full multiphase model as opposed to a wall film model condensation will have a physical presence in the domain. 

A deviation from an expected result could be lack of condensation, lack of time to build up condensation, how you're adding flow into the domain or more general issues (mesh, material properties etc) are potential CFD related problems. We also need to consider whether the experimental data is correct.

I don't automatically blame either data set when starting to look into differences: I've seen too many cases where CFD models are correct but linked to a poor experiment but also too many poor CFD models with good experimental data. I've also seen many case where both the CFD and experiment are good, but the CFD didn't actually model the correct conditions.