Radiative heating of inertial particles in a particle-laden turbulent duct flow

Laura Villafañe, Andrew Banko, Ji Hoon Kim, Chris Elkins, John K. Eaton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Radiation absorption by disperse solid particles in a turbulent square duct flow was studied experimentally for different particle loadings. The fully-developed flow of air at a Reynolds number of ReH = 20 · 103 was loaded with 12 μm diameter Nickel particles and exposed to monochromatic near-infrared radiation. Optical measurements confirmed the existence of significant preferential concentration at the low loadings. Total radiation transmission through the particle laden flow and mean gas temperature rise, were analyzed for mass loading ratios ranging from 0.1 to 0.4. Transmission measurements are in good agreement with the exponential decay predicted by the Beer-Lambert law. Estimates of the gas temperature rise from a one-dimensional model making use of the optically thin approximation are found to over predict the gas temperature at the highest loading when compared with the experimental data.

Original languageEnglish (US)
Title of host publication10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
PublisherInternational Symposium on Turbulence and Shear Flow Phenomena, TSFP10
ISBN (Electronic)9780000000002
StatePublished - 2017
Externally publishedYes
Event10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, United States
Duration: Jul 6 2017Jul 9 2017

Publication series

Name10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Volume3

Other

Other10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Country/TerritoryUnited States
CityChicago
Period7/6/177/9/17

ASJC Scopus subject areas

  • Atmospheric Science
  • Aerospace Engineering

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