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Experimental study of the hydrodynamic behaviour of slug flow in a horizontal pipe

Abdulkadir, M.; Hernandez-Perez, V.; Lowndes, I.S.; Azzopardi, B.J.; Sam-Mbomah, E.


M. Abdulkadir

V. Hernandez-Perez

Associate Professor and Reader in Environmental Engineering

B.J. Azzopardi

E. Sam-Mbomah


This paper investigates the unsteady hydrodynamic behaviour of slug flow occurring within an air–silicone oil mixture, within a horizontal 67 mm internal diameter pipe. A series of slug flow regime experiments were performed for a range of injected air superficial velocities (0.29–1.4 m s−1) and for liquid flows with superficial velocities of between 0.05–0.47 m s−1. A pair of Electrical Capacitance Tomography (ECT) probes was used to determine: the slug translational velocities of the elongated bubbles and liquid slugs, the slug frequencies, the lengths of elongated bubbles and the liquid slugs, the void fractions within the elongated bubbles and liquid slugs. The pressure drop experienced along the pipe was measured using a differential pressure transducer cell (DP cell). A comparative analysis of the current experimental data and that previously published experimental confirms good agreement.


Abdulkadir, M., Hernandez-Perez, V., Lowndes, I., Azzopardi, B., & Sam-Mbomah, E. (2016). Experimental study of the hydrodynamic behaviour of slug flow in a horizontal pipe. Chemical Engineering Science, 156,

Journal Article Type Article
Acceptance Date Sep 10, 2016
Online Publication Date Sep 20, 2016
Publication Date Dec 15, 2016
Deposit Date Nov 29, 2017
Publicly Available Date Nov 29, 2017
Journal Chemical Engineering Science
Print ISSN 0009-2509
Electronic ISSN 0009-2509
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 156
Keywords Air–silicone oil ; ECT ; Elongated bubble ; Liquid slug ; Frequency ; Void fraction
Public URL
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