Simulation of the transport processes in the neck-down region of a furnace drawn optical fiber

S. H.K. Lee, Y. Jaluria

Research output: Contribution to journalArticle

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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.

Original languageEnglish (US)
Pages (from-to)843-856
Number of pages14
JournalInternational Journal of Heat and Mass Transfer
Issue number4
Publication statusPublished - Mar 1997


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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