The void fractions, flow regimes, and pressure drop of air-oil two-phase flow in a half-inch diameter pipe over a wide range of test conditions have been investigated. The flow regimes were identified with the aid of a 1000 frames per second high-speed camera. A capacitance sensor for instantaneous void fraction measurements was developed. The mean and probability density function of the instantaneous void fraction signal can be used to effectively identify the different flow regimes. The current flow regime data show significant differences in the transitional boundaries of the existing flow regime maps. Property correction factors for the flow regime maps are recommended. The pressure drop measurements were compared to the predictions from four existing two-phase flow pressure drop models. Though some of the models performed better for certain flow regimes, none of the models were found to give accurate results over the entire range of flow regimes.
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e-mail: chingcy@mcmaster.ca
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January 2004
Technical Papers
Measurement of Void Fraction and Pressure Drop of Air-Oil Two-Phase Flow in Horizontal Pipes
J. L. Pawloski,
J. L. Pawloski
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
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C. Y. Ching,
e-mail: chingcy@mcmaster.ca
C. Y. Ching
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
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M. Shoukri
M. Shoukri
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
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J. L. Pawloski
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
C. Y. Ching
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
e-mail: chingcy@mcmaster.ca
M. Shoukri
Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, UK
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Amsterdam, The Netherlands, June 3–6, 2002; Paper No. 2002-GT-30277. Manuscript received by IGTI, December 2001, final revision, March 2002. Associate Editor: E. Benvenuti.
J. Eng. Gas Turbines Power. Jan 2004, 126(1): 107-118 (12 pages)
Published Online: March 2, 2004
Article history
Received:
December 1, 2001
Revised:
March 1, 2002
Online:
March 2, 2004
Citation
Pawloski , J. L., Ching, C. Y., and Shoukri, M. (March 2, 2004). "Measurement of Void Fraction and Pressure Drop of Air-Oil Two-Phase Flow in Horizontal Pipes ." ASME. J. Eng. Gas Turbines Power. January 2004; 126(1): 107–118. https://doi.org/10.1115/1.1619429
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