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Experimental investigation of air-water, two-phase flow regimes in vertical mini pipe

Hanafizadeh, P ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1016/j.scient.2011.07.003
  3. Publisher: 2011
  4. Abstract:
  5. In this study, the flow patterns of air-water, two-phase flows have been investigated experimentally in a vertical mini pipe. The flow regimes were observed by a high speed video recorder in pipes with diameters of 2,3 and 4 mm and length 27, 31 and 25 cm, respectively. The comprehensive visualization of air-water, two-phase flow in a vertical mini pipe has been performed to realize the physics of such a two-phase flow. Different flow patterns of air-water flow were observed simultaneously in the mini pipe at different values of air and water flow rates. Consequently, the flow pattern map was proposed for flow in the mini-pipe, in terms of superficial velocities of liquid and gas phases. The flow pattern maps are compared with those of other researchers in the existing literature, showing reasonable agreement
  6. Keywords:
  7. Two-phase flow ; Visualization ; Air-water ; Air-water flow ; Experimental investigations ; Flow pattern map ; Flow regimes ; High speed video recorder ; In-pipe ; Liquid and gas phasis ; Mini pipes ; Superficial velocity ; Water flow rate ; Air ; Flow of water ; Hydraulics ; Pipe ; Flow visualization ; Video recording ; Flow patterns ; Airflow ; Diameter ; Experimental study ; Flow measurement ; Pipe flow ; Pipeline ; Videography ; Water flow ; Air-water interaction ; Flow modeling ; Hydrological regime ; Literature review ; Research work
  8. Source: Scientia Iranica ; Volume 18, Issue 4 B , August , 2011 , Pages 923-929 ; 10263098 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1026309811001179