[Vitor Monteiro]

Originally Posted by Sk Hossen Ali

Dear Mohsen and others,

I am also trying to simulate evaporation of water in reactingTwoPhaseEulerFoam, using thermalPhaseChangeTwoPhaseSystem for mass and heat transfer between water(liquid in lower half of the domain) and air-water(gas in the upper half of the domain) mixture.

In my case I assume the liquid initially to be at saturation condition and heat flux is coming from the gas (higher temperature) side. I am also proving heat flux boundary condition from the outlet(upper side) to make the evaporation process speedy.

I expect evaporation to happen due to heat transfer from the hotter gas and constant heat flux from outside, but no matter what always the temperature of gas near the interface drops beyond the saturation temperature of liquid and condensation starts at the interface.

I am attaching my case file please please have a look at it , and suggestion and help would be highly appreciated.

https://drive.google.com/file/d/1DhB...ew?usp=sharing

Thanks in advance.

I think if you have a loot at the openFoam8 tutorial named bubbleColumnEvaporatingReacting could help. Have you saw this? It uses multiphaseEulerFoam solver.