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.
Previous Solution Operator for Solid/Powder Phase Change
Posted 2016年12月13日 GMT-5 07:13 Version 5.2 0 Replies
Please login with a confirmed email address before reporting spam
I am working on simulating layerwise additive manufacturing. During the process, there are two different solid phases, the powder and the bulk material Phase. Once the powder was melted, it won't return to the powder Phase but to bulk material Phase.
I tried to implement this behaviour by using the previous solution operator and tracking the maximum temperature for every element. Once the maximum temperature reaches the Liquidustemperature, a step function changes the properties form powder to bulk.
The variable (PorS) tracking the temperature doesn't do what it's meant to do and adopts very high values (1E7) Event he temperature is ca. 2000 K.
0=PorS-nojac(T>PorS, T, PorS)
with Initial value 273 K.
Discretization ist quadratic lagrange.
Has anyone an idea why this won't work?
Thank you!
Hello Michael Müller
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.