Study of gas-sheared liquid film in horizontal rectangular duct using high-speed LIF technique: Three-dimensional wavy structure and its relation to liquid entrainment

Cherdantsev, Andrey V.; Hann, David B.; Azzopardi, Barry J.

Abstract

© 2014 The Authors. The flow of a liquid film sheared by high velocity gas stream in a horizontal rectangular duct was investigated using a high-speed laser-induced fluorescence technique. Measurements of local film thickness were resolved in both longitudinal and transverse coordinates with high spatial and temporal resolution. It was found that the generation of fast and slow ripples by the disturbance waves was qualitatively the same as it was observed earlier in completely different conditions. The transverse size and curvature of the disturbance waves and ripples were measured. A relationship between the three-dimensional structure of ripples on top of disturbance waves and the two mechanisms of liquid entrainment, known as 'bag break-up' and 'ligament break-up', is proposed.

Citation

Cherdantsev, A. V., Hann, D. B., & Azzopardi, B. J. (2014). Study of gas-sheared liquid film in horizontal rectangular duct using high-speed LIF technique: Three-dimensional wavy structure and its relation to liquid entrainment. International Journal of Multiphase Flow, 67, 52-64. https://doi.org/10.1016/j.ijmultiphaseflow.2014.08.003

• Journal Article Type: Article
• Acceptance Date: Aug 7, 2014
• Online Publication Date: Aug 15, 2014
• Publication Date: Dec 1, 2014
• Deposit Date: Jul 29, 2016
• Publicly Available Date: Jul 29, 2016
• Journal: International Journal of Multiphase Flow
• Print ISSN: 0301-9322
• Electronic ISSN: 0301-9322
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 67
• Pages: 52-64
• DOI: https://doi.org/10.1016/j.ijmultiphaseflow.2014.08.003
• Keywords: Gas-sheared liquid film; Disturbance waves; Ripples; Liquid entrainment; Annular flow; Laser-induced fluorescence
• Public URL: https://nottingham-repository.worktribe.com/output/741625
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S030193221400144X
• Additional Information: This article is maintained by: Elsevier; Article Title: Study of gas-sheared liquid film in horizontal rectangular duct using high-speed LIF technique: Three-dimensional wavy structure and its relation to liquid entrainment; Journal Title: International Journal of Multiphase Flow; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ijmultiphaseflow.2014.08.003; Content Type: article; Copyright: Copyright © 2014 The Authors. Published by Elsevier Ltd.