Reply To: Saturation temperature UDF

[Surya Deb]

Hello,
The first option (C_P(c, t)+ p_op)* (N_wv / N_total) is correct as it need to have the Absolute pressure information.
Also consider using Species Mass Transfer model if the evaporation/condensation is concentration driven.
Check this link [https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v212/en/flu_th/InterfaceSpeciesMassTransfer-3A72B96D.html?q=species%20mass%20transfer]
Regards SD