NDLI: Local Liquid Velocities in Horizontal, Annular Air/Water Flow

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Charles, R. Kopplin
Copyright Year	2003
Abstract	A newly developed flow visualization method that utilizes a three color LED strobe has been used to study the axial and circumferential velocities of the liquid in horizontal, annular two-phase flow. This non-intrusive technique allows the tracking of naturally entertained air bubbles within the liquid film along the top, bottom, and sides of the tube. Sets of images have been obtained for multiple combinations of air and water flow rates ranging in quality from approximately 0.07 to 0.49. The bubble-tracking velocimetry measurement method is explained, and comparison of the current data with past results and their impact on annular flow modeling are discussed. The data do not support two of the four theories for liquid film distribution in annular, horizontal multiphase flow, while the two remaining theories cannot be directly examined using the three color LED strobe measurement technique.
Sponsorship	Fluids Engineering Division
Starting Page	827
Ending Page	831
Page Count	5
File Format	PDF
ISBN	0791837165
DOI	10.1115/IMECE2003-43595
Volume Number	Fluids Engineering
Conference Proceedings	ASME 2003 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2003-11-15
Publisher Place	Washington, DC, USA
Access Restriction	Subscribed
Subject Keyword	Visualization Multi-phase Color strobe Annular flow Velocimetry Water Bubbles Multiphase flow Two-phase flow Flow visualization Liquid films Flow (dynamics) Modeling
Content Type	Text
Resource Type	Article

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