Authors: B P Huynh R I Tanner
Publish Date: 1983/09/01
Volume: 22, Issue: 5, Pages: 482-499
Abstract
The glass fibre drawing process is simulated using a finiteelement method The twodimensional energy and momentum equations are solved in their fully nonlinear forms These are coupled via the temperaturesensitive viscosity function Both convective and radiative cooling mechanisms are taken into account on the filament surface An effective emissivity of about 02 is found to be applicable to the drawing conditions in this paper Even at this fairly low effective emissivity radiation is found to be the dominant mode of cooling The material thermal conductivity is found to have a small but definite influence on the filament profiles Twodimensionsl effects of the kinematic field are only significant up to a distance of about two orifice radii from the nozzle exit
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