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.
Element Death (In Fluid Flow)
Posted Jan 26, 2016, 10:25 a.m. EST Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Materials Version 5.1 0 Replies
Please login with a confirmed email address before reporting spam
I have a layer of material, which represents a powder. A laser beam (modeled as a volumetric heat source) is moved over the length of the powder layer. From this, the powder is melted and solidified as it cools back down. I modeled the layer as a fluid with a temperature dependent dynamic viscosity. This way it can behave as a fluid when it is above melting temp, and a solid when its below melting temp. However there is one more effect that I can't figure out how to model.
As the powder is melted, a melt pool forms, and due to the surface tension of the air/melt interface the pool becomes rounded into a half cylinder shape. I want to kill the elements outside the meltpool as the laser has passed the plane they lie in. By kill I guess I mean replace with air. Is there a way to do this?
Hello Richard Andreotta
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.