LASER-ENHANCED THERMOPHORESIS IN VERTICAL TUBE FLOWS.

Chen-Yuan Wang, T. F. Morse, J. W. Cipolla

Research output: Contribution to journalConference articlepeer-review

Abstract

A numerical study of laser-enhanced thermophoretic deposition in a vertical tube has been conducted to determine the value of this configuration for the production of optical fiber preforms using the Modified Chemical Vapor Deposition process. The combined forced-free convection problem has been solved numerically using an appropriately modified version of the SIMPLER algorithm. It has been found that buoyancy has almost no effect on deposition, that the cumulative deposition efficiency increases with total laser power and there is an optimal beam width that maximizes the deposition for a given power. High laser power has the added effect of producing a more uniform deposit on the tube wall than low power.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume82
Publication statusPublished - 1987 Dec 1

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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