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Characteristics of air/water slug flow in an intermediate diameter pipe (2014)
Journal Article
Azzopardi, B. J., Do, H., Azzi, A., & Hernandez Perez, V. (2015). Characteristics of air/water slug flow in an intermediate diameter pipe. Experimental Thermal and Fluid Science, 60, https://doi.org/10.1016/j.expthermflusci.2014.08.004

Experiments have been carried out in a 67 mm diameter pipe with air and deionised water in which gas superficial velocities between 0.04 and 0.55 m/s were studied. A capacitance technique, employing electrodes mounted on either side of the outside of... Read More about Characteristics of air/water slug flow in an intermediate diameter pipe.

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 (2014)
Journal Article
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

© 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 lo... Read More about 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.

Experimental investigation of air–water two-phase flow through vertical 90° bend (2014)
Journal Article
Saidj, F., Kibboua, R., Azzi, A., Ababou, N., & Azzopardi, B. J. (2014). Experimental investigation of air–water two-phase flow through vertical 90° bend. Experimental Thermal and Fluid Science, 57, https://doi.org/10.1016/j.expthermflusci.2014.04.020

The behaviour of two-phase air–water mixture flowing from the horizontal to the vertical through a 90° bend has been investigated experimentally. Cross sectional void fraction at nine positions, three upstream and six downstream of the bend have been... Read More about Experimental investigation of air–water two-phase flow through vertical 90° bend.

Persistence of frequency in gas–liquid flows across a change in pipe diameter or orientation (2014)
Journal Article
Azzopardi, B. J., Ijioma, A., Yang, S., Abdulkareem, L. A., Azzi, A., & Abdulkadir, M. (2014). Persistence of frequency in gas–liquid flows across a change in pipe diameter or orientation. International Journal of Multiphase Flow, 67, https://doi.org/10.1016/j.ijmultiphaseflow.2014.03.010

From a study of the characteristics of structures across a 67/38 mm sudden contraction, using air/silicone oil flows, it has been found that frequencies of the structures (mainly slugs) persist across the contraction. This is in contrast to the veloc... Read More about Persistence of frequency in gas–liquid flows across a change in pipe diameter or orientation.

Liquid film thickness behaviour within a large diameter vertical 180° return bend (2013)
Journal Article
Adbulkadir, M., Azzi, A., Zhao, D., Lowndes, I., & Azzopardi, B. (2014). Liquid film thickness behaviour within a large diameter vertical 180° return bend. Chemical Engineering Science, 107, 137-148. https://doi.org/10.1016/j.ces.2013.12.009

Experimental results of liquid film thickness distribution of an air-water mixture flowing through a vertical 180° return bend are reported. Measurements of liquid film thickness were achieved using flush mounted pin and parallel wire probes. The ben... Read More about Liquid film thickness behaviour within a large diameter vertical 180° return bend.

Experimental study of the hydrodynamic behaviour of slug flow in a vertical riser (2013)
Journal Article
Abdulkadir, M., Hernandez-Perez, V., Lowndes, I., Azzopardi, B. J., & Dzomeku, S. (2014). Experimental study of the hydrodynamic behaviour of slug flow in a vertical riser. Chemical Engineering Science, 106, https://doi.org/10.1016/j.ces.2013.11.021

This paper presents an investigation of the hydrodynamics of slug flow in a vertical 67 mm internal diameter riser. The slug flow regime was generated using a multiphase air–silicone oil mixture over a range of gas (0.42

Separation of oil/water emulsions in continuous flow using microwave heating (2013)
Journal Article
Binner, E., Robinson, J. P., Kingman, S., Lester, E., Azzopardi, B. J., Dimitrakis, G., & Briggs, J. (2013). Separation of oil/water emulsions in continuous flow using microwave heating. Energy and Fuels, 27(6), https://doi.org/10.1021/ef400634n

This work studies a continuous flow microwave system to enhance gravity settling of water-in-oil emulsions. Settling times were found to be dependent upon the applied power, flowrate and energy input. Power and energy input are linked to liquid flowr... Read More about Separation of oil/water emulsions in continuous flow using microwave heating.