RESEARCH PAPERS: Featured Section—Heat Transfer in Manufacturing

A Model for Radiative Cooling of a Semitransparent Molten Glass Jet

[+] Author and Article Information
M. Song

Department of Mechanical Engineering, Dongguk University, Seoul 100-715, Korea

K. S. Ball

Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712-1063

T. L. Bergman

Department of Mechanical Engineering, The University of Connecticut, Storrs, CT 06269-3139

J. Heat Transfer 120(4), 931-938 (Nov 01, 1998) (8 pages) doi:10.1115/1.2825912 History: Received September 09, 1997; Revised March 30, 1998; Online December 05, 2007


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.

Copyright © 1998 by The American Society of Mechanical Engineers
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