How to simulate the melting action of two metals using the VOF model

- September 4, 2023 at 6:56 am
  Jian Liu
  Subscriber
  Hello everyone, I am using FLUENT software to do numerical simulations of metal dissimilar welding and I am experiencing some difficulties.
  1. If I use VOF to build the model, can I set only two phases (upper gas domain, lower layer stacked with two layers of metal)?
  2. If a gas-liquid two-phase flow is used, how are the two metal materials below the gas domain set?
  3. Previously, I had simulated the melting of a single layer of metal (setting gas and metal materials), and after initialization, I used the "patch" function to customize the area size of the second phase (i.e. metal phase), when the matrix contains two metal materials, how do I make the two phases one?
  4. I would be grateful for any recovery! Thanks again!
- September 11, 2023 at 2:05 pm
  
  Rob
  Forum Moderator
  
  If the solid & melt are the same material have a look at the solidification & melting model in Fluent. With VOF you can have lots of different phases, I'm fairly sure there is a limit but would be very surprised if anyone ever reached it!