Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
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.
How to create this geometry?
Posted 2011年1月31日 GMT-5 00:17 Geometry, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.0 0 Replies
Please login with a confirmed email address before reporting spam
the physical problem is as follows:
one dimensional space, 0<=x<=l, initially solid at temperature Tinit<Tm (Tm is the melting temperature of ice), the ice is melted by imposing a hot temperature Th>Tm at the point x=0 and keeping the other point , x=l, insulated. At each time t, liquid occupies (0, X(t)) and solid (X(t),l). The point x=X(t) represents the moving interface location that demarcating the liquid and solid space-time regions.
I want use the ALE method to track the moving interface. However, according to the physical problem above, initially (t=0) there is only one domain which is occupied by the solid (ice), at each time (t > 0), two domains are needed, one occupied by solid (ice) and the other occupied by liquid (water). So how should I create the geometries?
my current way is : create a line and a point (as the moving interface) assembly, the point overlap one endpoint of the line. problem occurs:
1) in the ALE settings, I want to set the mesh velocity of that point, but the point is not applicable.
2) how should I set the heat transfer for solid and liquid domains respectively, because there is only solid exists initially.
Hello Xiaoyi Yu
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.