Drying of the surface of a solid

- August 9, 2021 at 10:51 am
  
  tungseng99
  Subscriber
  
  Hi, I am new to Fluent. I want to do a moisture removal from the surface of a solid. So, I would like to ask about, how to model moisture content on a solid surface? And is it possible to solve a drying simulation without using UDF?
  That would be much appreciated if anyone could help.
  Tung.
- August 9, 2021 at 2:41 pm
  
  Rob
  Forum Moderator
  
  Is the solid porous or are you just evaporating a surface layer of liquid? There are various approaches, read up on the multiphase models and wall films in Fluent. Then explain the problem in more detail.
- August 9, 2021 at 3:32 pm
  
  tungseng99
  Subscriber
  
  Yes Rob, I'm trying to evaporate a surface layer of liquid, something like free water surface. I have read some research papers and I understand that UDF can be used in drying simulation. But most of them did drying of a porous material. So I'm wondering if I can just do it without UDF to simulate drying of a surface layer of liquid.
- August 11, 2021 at 4:33 pm
  
  Rob
  Forum Moderator
  
  You may be able to avoid using a UDF, have a look at the Eulerian Wall Film.