Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Wet surface boundary condition
Posted 8 mar 2021, 18:13 GMT-5 Heat Transfer Version 5.3a 1 Reply
Please login with a confirmed email address before reporting spam
Hi, I am trying to implement the Moisture Transport in Air module in COMSOL 5.3a to simulate evaporation of water. As a starting point, I have a rectangular domain with insulated side walls, specified moisture content on the top boundary, and wet surface condition on the bottom boundary. As mentioned in the Equation section, the wet boundary condition models moisture flux as 
with the evaporation constant K being a user input. I am trying to understand what 
is. Is it the concentration determined by the temperature and pressure of the moist air medium or the concentration at the top boundary, or something else? Thank you!
Hello Rishav Roy
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.
Please login with a confirmed email address before reporting spam
It should be the concentration of water vapor in the environment