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Velocity measurements and energy distribution for isothermal, suddenlyexpanding, swirling flow in an industrial burner with bluff-body

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  • Shyh-Ching, Yang
  • Ruey-Shin, Juang
  • Wen-Chen, Chang
  • Jen-Shien, Chen

Abstract

This paper deals with two-dimensional, back-scatter, laser-Doppler anemometer measurements in confined, isothermal, nonreacting, suddenly-expanding swirling air flow. Simultaneous axial and azimuthal, mean and fluctuating velocity measurements were made by using a laser-Doppler anemometer (LDA) system. It is found that the maximum total reverse-flow rate occurs at about 0.50 furnace dia, with 60% of the inlet mass flow recirculated. Some quantitative information, such as the size, shape and intensity of the central recirculation zone, as well as the axial distribution of the energy flux, are provided.

Suggested Citation

  • Shyh-Ching, Yang & Ruey-Shin, Juang & Wen-Chen, Chang & Jen-Shien, Chen, 1990. "Velocity measurements and energy distribution for isothermal, suddenlyexpanding, swirling flow in an industrial burner with bluff-body," Energy, Elsevier, vol. 15(11), pages 1015-1021.
    • Handle: RePEc:eee:energy:v:15:y:1990:i:11:p:1015-1021
    DOI: 10.1016/0360-5442(90)90027-Y
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