Numerical simulation of liquid fuel sprays evolution and the subsequent vapor/air mixture formation in a duct with a 90°-bend (DOI:10.1016/j.icheatmasstransfer.2007.08.014)

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5 Citations (Scopus)

Abstract

Kerosene spray evolution and droplet vaporization and subsequent mixing of the resulting vapor with air in a 90°-bended duct are studied numerically. The role played by the bend on the aforementioned processes is highlighted by comparing the bend results with results in a straight duct that has cross-sectional dimensions and overall length as those of the bended duct. Different case studies are considered. The droplet/wall interaction regime adopted is the reflection regime. The droplet injection and wall temperature conditions are selected in such a way that this choice of droplet/wall interaction regime is justified. Results show that, as compared with the straight duct results, there is a significant role played by the bend in enhancing droplet heatup, vaporization, and subsequent mixing of the vapor with the air. For sufficiently fine droplets (with a mean diameter less than about 20 μm) droplet/wall interaction loses its significance as a mechanism that dictates the subsequent air/vapor-mixture formation scenarios in the duct, leaving the bend geometry alone to do so.

Original languageEnglish
Pages (from-to)1397-1402
Number of pages6
JournalInternational Communications in Heat and Mass Transfer
Volume35
Issue number10
DOIs
Publication statusPublished - Dec 2008

Keywords

  • 90°-bend
  • Droplet/wall interaction
  • Spray
  • Vaporization
  • vapor/air mixing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

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