TY - JOUR
T1 - Simulation of the transport processes in the neck-down region of a furnace drawn optical fiber
AU - Lee, S. H.K.
AU - Jaluria, Y.
N1 - Funding Information:
Acknowledgements The authors wish to acknowledge the assistance ot" Prof. U. C. Paek, the financial support from the National Science Foundation under grant DDM-92-13458, the Hong Kong Telecom Institute of Information Technology under grant HKTIIT94/95.EG02 and the computational resource provided by the Pittsburgh Supercomputer Center under grant CTS930050P.
PY - 1997/3
Y1 - 1997/3
N2 - The heating, drawing and cooling of fused silica have a great impact on the overall quality of the fiber. Thus, a clear understanding of the underlying physics is crucial. The present study seeks to evaluate the impact of simplifying assumptions in the treatment of the transport equations and the thermal conditions, as well as to evaluate the feasibility of adapting simpler models. The results showed a localization of the vorticity and viscous dissipation, and confirmed the existence of temperature and velocity gradients. The results also showed the necking shape, heat transfer coefficient and furnace temperature profiles to have a decisive impact on the overall solution. In addition, the approximation of setting the vorticity to zero was found to be a feasible alternative.
AB - The heating, drawing and cooling of fused silica have a great impact on the overall quality of the fiber. Thus, a clear understanding of the underlying physics is crucial. The present study seeks to evaluate the impact of simplifying assumptions in the treatment of the transport equations and the thermal conditions, as well as to evaluate the feasibility of adapting simpler models. The results showed a localization of the vorticity and viscous dissipation, and confirmed the existence of temperature and velocity gradients. The results also showed the necking shape, heat transfer coefficient and furnace temperature profiles to have a decisive impact on the overall solution. In addition, the approximation of setting the vorticity to zero was found to be a feasible alternative.
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U2 - 10.1016/0017-9310(96)00165-2
DO - 10.1016/0017-9310(96)00165-2
M3 - Article
AN - SCOPUS:0031103721
SN - 0017-9310
VL - 40
SP - 843
EP - 856
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 4
ER -