I am doing a simulation with two boxes like this:
Here I have defined the top box to be fluid and bottom box to be solid. I am using multiphase VOF model and in the top box, I have patched the high viscous Silicon-liquid (viscosity= 1000 Pa.s ) to have volume fraction=1. I ran the my simulation for 1 second only where I rotated the frame of top box (i.e si-liquid fluid box). I was hoping as the viscosity of Si is too high, they would stick together. But after the simulation when plotted the contour of volume fraction of Si, it came out like this:
It looks as if there is no Si left in majority of the portion. Why is it so? Can anyone please elaborate this? Also, can anyone help me find a process where I can make this Si attached to the upper box throughout the simulation? And is this because I rotated the frame? The speed was not that much though, it was just 1.57 rad/s.
Thanks in advance,