How to make porous zone to be ‘solid’ ?

- September 19, 2019 at 4:16 pm
  
  wuxuetianzi
  Subscriber
  
  HI,
  
  I used the VOF and solidification and species transport model. the reactant gases are phase 1, the material I want to melt is phase 2. Reactions happened on the porous zone surface to improve the temperature. phase 2 is patched right on top of the porous zone. everything looks good until many steps passed. phase 2 deformed from rectangle to ball shape because of surface tension. However, partial phase 2 sinked into the porous zone. If I activate the gravity, more phase 2 would be going inside the porous zone.
  
  How can I make the porous zone to be kind of solid, so that phase 2 only deformed on the surface of the porous zone?
  
  Thanks!
  
  In the attached picture, the green rectangle is the porous zone, blue/green/yellow part is phase 2 I want to melt. the red part is phase 1 of gases. this is simulation without gravity.
- September 24, 2019 at 2:35 pm
  
  Rob
  Forum Moderator
  
  Try setting the top surface as a porous jump, I think you can then set contact angle. Also significantly increase the phase 2 porous resistance coefficients. You'll still get some diffusion but hopefully not too much.