jyoti
Subscriber

Thankyou for your response.


Yes in two-phase interaction, I am using VOF method (evaporation and condensation model)


CASE EXPLANATION: In My case fluid is flowing over the tubes of heat exchanger I want to do when water flowing downward direction how much of water will get evaporated from inlet to outlet of the tube ( as tube are at higher temp taking constant wall temp case)


I want to know coeff of value how to find out this  as mentioned in equation 16 (referring to the below link)


https://www.afs.enea.it/project/neptunius/docs/fluent/html/th/node344.htm