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Number of results
2013 | 34 | 2 | 241-252

Article title

Non-Invasive Evaluation of Wavy Liquid Film


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The study presents the possible use of optoelectronic system for the measurement of values specific for hydrodynamics of two-phase gas very-high-viscosity liquid flow in vertical pipes. An experimental method was provided, and the findings were presented and analysed for selected values which characterise the two-phase flow.









Physical description


1 - 06 - 2013
09 - 07 - 2013


  • Opole University of Technology, Department of Chemical and Process Engineering, ul. Mikołajczyka 5, 45-271 Opole, Poland
  • Opole University of Technology, Department of Chemical and Process Engineering, ul. Mikołajczyka 5, 45-271 Opole, Poland


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  • Czernek K., Filipczak G., Witczak S., 2008. Dynamics of annular two-phase flow of gas and a highly viscous liquid. Przem. Chem., 87, 105-110 (in Polish).
  • Czernek K., Witczak S., 2006. Interface surface characteristics for two-phase annular flow of gas and viscous liquid. Inż. i Ap. Chem., 6, 48-50 (in Polish).
  • Czernek K., 2004. Hydrodynamics of annular cocurrent down-flow of very viscous liquid and gas in verticalpipes. PhD Thesis. Opole University of Technology, Opole (in Polish).
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  • Oriol J., Lecrc J.P., Jallut C., Tochon P., Clement P., 2008. Characterization of the two-phase flow regimes and liquid dispersion in horizontal and vertical tubes by using coloured tracer and non-intrusive optical detector. Chem. Eng. Sci., 63, 24-34. DOI: 10.1016/j.ces.2007.08.079.[WoS][Crossref]
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  • Stahl P., Rohr P.R., 2004. On the accuracy of void fraction measurements by single-beam gamma-densitometry for gas-liquid two-phase flows in pipes. Exp. Therm. Fluid Sci., 28, 533-544. DOI: 10.1016/j.expthermflusci.2003.08.003.[Crossref]
  • Troniewski L., Witczak S., Czernek K., 2006. Hydrodynamics and heat transfer during two-phase gas-high viscous liquid flow in film reactor. Chem. Process Eng., 27, 1341-1359.
  • Wojtan T., Ursenbacher J.R., Thome J.R., 2005. Measurement of dynamic void fractions in stratified types of flow, Exp. Therm. Fluid Sci., 29, 383-392. DOI: 10.1016/j.expthermflusci.2004.05.017.[Crossref]
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