An algebraic model is developed access the gas and the liquid flow rates of a two-phase mixture through a Venturi tube. The flow meter operates with upward bubbly flows with low gas content, i.e., volumetric void fraction bellow 12%. The algebraic model parameters stem from numerical modeling and its output is checked against the experimental values. An indoor test facility operating with air-water and air-glycerin mixtures in a broad range of gas and liquid flow rates reproduces the upward bubbly flow through the Venturi tube. Measurements of gas and liquid flow rates plus the static pressure acroos the Venturi constitute the experimental database. The numerical flow modeling uses the isothermal, axis-symmetric with no phase change representation of the Two-Fluid model. The numerical output feeds the Venturi’s algebraic model with the proper constants and parameters embodying the two-phase flow physics. The novelty of this approach is the development of each flow meter model accordingly to its on characteristics. The flow predictions deviates less than 14% from experimental data while the mixture pipe Reynolds number spanned from 500 to 50,000.
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Experimental and Numerical Development of a Two-Phase Venturi Flow Meter
Euge^nio S. Rosa,
Euge^nio S. Rosa
Faculty of Mechanical Engineering-FEM, State University of Campinas, UNICAMP, CEP. 13081-970, Campinas, Sa˜o Paulo, Brazil
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Rigoberto E. M. Morales
Rigoberto E. M. Morales
Thermal Sciences Laboratory-LACIT, Academic Department of Mechanics-DAMEC, Federal Center of Technological Education of Parana´—CEFET/PR, CEP. 80230-901, Curitiba, Parana´, Brazil
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Euge^nio S. Rosa
Faculty of Mechanical Engineering-FEM, State University of Campinas, UNICAMP, CEP. 13081-970, Campinas, Sa˜o Paulo, Brazil
Rigoberto E. M. Morales
Thermal Sciences Laboratory-LACIT, Academic Department of Mechanics-DAMEC, Federal Center of Technological Education of Parana´—CEFET/PR, CEP. 80230-901, Curitiba, Parana´, Brazil
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division February 20, 2003; revised manuscript received November 30, 2003. Associate Editor: S. L. Ceccio.
J. Fluids Eng. May 2004, 126(3): 457-467 (11 pages)
Published Online: July 12, 2004
Article history
Received:
February 20, 2003
Revised:
November 30, 2003
Online:
July 12, 2004
Citation
Rosa, E. S., and Morales, R. E. M. (July 12, 2004). "Experimental and Numerical Development of a Two-Phase Venturi Flow Meter ." ASME. J. Fluids Eng. May 2004; 126(3): 457–467. https://doi.org/10.1115/1.1758267
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