Hi,
I am doing phase-change simulation now. I have got some problems about creating interface. At the evaporation interface, there are two edges overlapping, one belongs to channel zone, the other belongs to porous zone.
So when I creat interface in FLuent, I should creat interface with porous-up and channel-up as condensation interface;porous-down and channel-down as evaporation interface. But when I set like above, there is a divergence with energy.
However, when I creat interface with porous-up and channel-down, the temperature distribution is good.
The weirdest thing is that I can even creat interface with porous-up and channel-left, even though their sizes do not match.
Could anyone tell me the principle of creating interface? How should I treat the interface when I want evaporation only occurs at the wick-vapor interface.I do not want the liquid flows into the channel zone, but only after the liquid turns into vapor.
Thank you.
Regards,
Bill
https://www.sharcnet.ca/Software/Fluent14/help/flu_ug/flu_ug_Create_Edit_Mesh_Interfaces.html
Dear Franco Concli ,
Thank you for the reply. I have checked the file you have sent.
When I creat interface in fluent, the liquid in the porous will go into the vapor core, which is not expected. It can only goes into the vapor core after it has turned into vapor.
I am still confused, but thank you anyway.
Regards,
Bill
Dear Bill Wang, I have met the similar problem like yours. Have you solved this problem later? Could you please tell me how you solve it?
Dear Chen,
To the best, I can remember, I created one interface only, but used an evaporation-condensation equation. This part of knowledge is beyond my memory now, since I have touched this problem for two years. It was really a time-consuming task.
Hope you can work it out soon. Good luck.
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