A mathematical model for the radiative cooling of a semitransparent molten glass jet with temperature-dependent viscosity has been developed and is implemented numerically. The axial velocity and jet diameter variations along the length of the jet, the axial bulk mean temperature distributions, and the centerline-to-surface glass temperature distributions are determined for different processing conditions. Comparisons are also made between the semitransparent predictions, which are based on a spectral discrete ordinates model, and predictions for an opaque medium.

Issue Section:
Featured Section—Heat Transfer in Manufacturing
Keywords:
Jets, Materials Processing and Manufacturing Process, Radiation
Topics:
Cooling, Glass, Temperature distribution, Jets, Manufacturing, Materials processing, Radiation (Physics), Temperature, Viscosity
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