Abstract
A numerical model for simulation of molten glass flow with semi-implicit method for pressure-linked equations (SIMPLE) and Volume of fluid (VOF) method during the overflow fusion process was carried out by using FLUENT software. The effect of the geometry parameters of the isopipe and flow rate of molten glass on the flow patterns during overflow was investigated. The results showed that the overflow trough depth only had an effect on the flow rate distribution of glass melt around the inlet point. The tilt angle at the top of the trough had a significant effect on flow rate distribution along the length of the trough, and the desired mass distribution was achieved at the tilt angle 4°∼6°. The flow rate had a large influence on the overflow of the molten glass, which had a directive significance to the overflow down draw sheet manufacturing process.
Highlights
The glass used as LCD substrates are produced by two different processes: floating process [1], and overflow fusion process [2]-[5]
The results showed that the flow of molten glass at inlet point was greater than that of the far end
The flow distribution curves of molten glasses with different values of α were almost overlapped, which indicated that the change of bottom tilt angle of trough did not make a significant difference in the flow distribution of molten glass
Summary
The glass used as LCD substrates are produced by two different processes: floating process [1], and overflow fusion process [2]-[5]. The overflow fusion process has become a particular importance method in the production of the glass substrates used in the manufacture of LCDs. To gain a better understanding of molten glass flow during the overflow fusion process, the physical phenomena should be well studied. In this study, FLUENT software was used to simulate the 3D flow of the molten glass in the isopipe. Flow rate of molten glass on the flow patterns during overflow were studied, which had a certain guiding role for actual production
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
