I am trying to simulate the heating and phase change of a low melting point metal. In the mph file that I've uploaded to Google drive (drive.google.com/file/d/0B3QaD21DDcpNeFdlYjJwNWE4Rzg), you can see the innermost helical heating coil, surrounded by a helical silicone tube. A small air gap exists between these two domains. The silicone tube is immersed in the low-melting point metal which is in turn contained by two concentric cylinders of silicone.
When solving, I get a warning (Inverted element near ~0,0,0). This cannot be, there is no material near the origin.
The solution shows that the model is being heated but I cannot find any evidence of phase change in the Field’s metal (you can see this by plotting out Table 1 in results section). As far as I can see, I have set the Physics options correctly. Can you please give me a clue as to what I might be doing wrong?
When I improved mesh quality, warning disappeared, but solver hung as soon as it was time for phase change (at melting point) and seemed to stay there forever. I tried to improve convergence by changing fully-coupled settings (max no.of iterations- 25 and tolerance - 1e-3), but this did not work either.
When solving, I get a warning (Inverted element near ~0,0,0). This cannot be, there is no material near the origin.
The solution shows that the model is being heated but I cannot find any evidence of phase change in the Field’s metal (you can see this by plotting out Table 1 in results section). As far as I can see, I have set the Physics options correctly. Can you please give me a clue as to what I might be doing wrong?
When I improved mesh quality, warning disappeared, but solver hung as soon as it was time for phase change (at melting point) and seemed to stay there forever. I tried to improve convergence by changing fully-coupled settings (max no.of iterations- 25 and tolerance - 1e-3), but this did not work either.