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Interfacial Wave Characteristics for Countercurrent Stratified Air-Water Flow in a Horizontal Pipe


To experimentally investigate the several wave patterns for the horizontal countercurrent stratified air-water flow, a series of systematic experimental studies have been performed. The experiments are carried out in a horizontal pipe with 4m in length and 102mm in inner diameter. The oater and air superficial velocities vary from 0.0004 to 0.0204 and from 0 to 6m/s, respectively. The instantaneous water thickness is measured by parallel-wire conductance probes, and the wave field is recorded by high speed video camera. Also, to evaluate the wave effect on interfacial friction factor, the pressure drop is measured. Statistical data anal)sis is accomplished in order to obtain the fundamental wave parameters such as un amplitude, length and velocity, and spatial growth factor. By using these statistical parameters, the wave regime boundaries can be verified.

참고문헌 (13)

  1. Influence of Interfacial Waves in Stratified Gas-Liquid Flows , N. Andritsos;T.J. Hanratty , AIChE J. / v.33,pp.444, 1987
  2. Effect of Pipe Diameter on Flow Patterns for Air-Water Flow in Horizontal Pipes , P.Y. Lin;T.J. Hanratty , Int. J. Multiphase Flow / v.13,pp.549, 1987
  3. Formation of Solitary Waves on Gas-Shearedd Liquid Layers , C.A. Peng;L.A. Jurman;M.J. McCready , Int. J. Multiphase Flow / v.17,pp.767, 1991
  4. The Role of Waves in Two Phase Flow : Some New Understanings , A.E. Dukler , Chem. Eng. Education / v.11,pp.108, 1977
  5. Statistical Characteristics of Thin, Vertical, Wavy. Liquid Films , A.S. Telles;A.E.Dukler , Ind. Eng. Chem. Fund. / v.9,pp.412, 1970
  6. Statistical Characteristics of Thin, Vertical. Wavy. Films : part Ⅱ. Studies of Substrate and Its Wave Structure , K.J.Chu;A.E. Dukler , AIChE J. / v.20,pp.695, 1974
  7. The Onset of Slugging in Horizontal Stratified Air-Water Flow , G.B.Wallis;J.E. Dobson , Int. J. Multiphase Flow / v.1,pp.173, 1973
  8. flooded Countercurrent Two-Phase Flow in Horizontal Tubes and Channels , G.C. Gardner , Int. J. Multiphase Flow / v.9,pp.367, 1983
  9. Tiederman, Parallel-Wire Probes for Measurement of Thick Liquid Films , J.E. Koskie;I. Mudawar;W.G. Tiederman , Int. J. Multiphase Flow / v.15,pp.521, 1989
  10. H.J. Chung , An Experimental Study of Solitary Wave Transition Characteristics for Countercurent Stratified Air Water Flows in a Horizontal Pipe, M.S. Thesis / v.,pp., 1995
  11. J.S. Bendat;A.G. Piersol , Random Data Analysis and Measurement Procedures / v.,pp., 1991
  12. A Theoretical Approach to the Lockhart-Martinelli Correlation for Stratified flow , Y. Taitel;A.E. Dukler , Int. J. Multiphase Flow / v.2,pp.591, 1976
  13. ASME Performance Test Codes : Supplement on Instruments and Apparatus, Part.1; Measurement Uncertainty , ANSI/ASME PTC 19.1 / v.,pp., 1985

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