Thin film thickness measurements in two phase annular flows using ultrasonic pulse echo techniques

Al-Aufi, Y.A.; Hewakandamby, B.N.; Dimitrakis, G.; Holmes, M.; Hasan, Abbas; Watson, N.J.

doi:10.1016/j.flowmeasinst.2019.02.008

All Outputs (5)

Vertical upward and downward churn flow: Similarities and differences (2019)
Journal Article
Bouyahiaoui, H., Azzi, A., Zeghloul, A., Hasan, A. H., Al-Sarkhi, A., & Parsi, M. (2020). Vertical upward and downward churn flow: Similarities and differences. Journal of Natural Gas Science and Engineering, 73, Article 103080. https://doi.org/10.1016/j.jngse.2019.103080

Investigation of downward two-phase flows received less attention compared to the vertical upward flows. Downward flows are found in many industries and facilities including; oil/gas production, nuclear industry and petroleum refinery/production faci... Read More about Vertical upward and downward churn flow: Similarities and differences.

Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves (2019)
Journal Article
Zeghloul, A., Bouyahiaoui, H., Azzi, A., Hasan, A., & Al-sarkhi, A. (2020). Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves. Journal of Fluids Engineering, 142(2), Article FE-19-1329. https://doi.org/10.1115/1.4044833

This paper presents an experimental investigation of the pressure drop through valves in vertical upward flows. Experiments were carried out using a 1¼" (DN 32) ball and a gate valve. Five opening areas have been investigated from fully open to the n... Read More about Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves.

Dynamics of flow transitions from bubbly to churn flow in high viscosity oils and large diameter columns (2019)
Journal Article
Mohammed, S. K., Hasan, A. H., Ibrahim, A., Dimitrakis, G., & Azzopardi, B. J. (2019). Dynamics of flow transitions from bubbly to churn flow in high viscosity oils and large diameter columns. International journal of multiphase flow, 120, Article 103095. https://doi.org/10.1016/j.ijmultiphaseflow.2019.103095

Gas rising through a large diameter column of very viscous liquid: Flow patterns and their dynamic characteristics (2019)
Journal Article
Hasan, A. H., Mohammed, S. K., Pioli, L., Hewakandamby, B. N., & Azzopardi, B. J. (2019). Gas rising through a large diameter column of very viscous liquid: Flow patterns and their dynamic characteristics. International journal of multiphase flow, 116, 1-14. https://doi.org/10.1016/j.ijmultiphaseflow.2019.04.001

Gas-liquid flows are affected strongly by both the liquid and gas properties and the pipe diameter, which control features and the stability of flow patterns and their transitions. For this reason, empirical models describing the flow dynamics can be... Read More about Gas rising through a large diameter column of very viscous liquid: Flow patterns and their dynamic characteristics.

Thin film thickness measurements in two phase annular flows using ultrasonic pulse echo techniques (2019)
Journal Article
Al-Aufi, Y., Hewakandamby, B., Dimitrakis, G., Holmes, M., Hasan, A., & Watson, N. (2019). Thin film thickness measurements in two phase annular flows using ultrasonic pulse echo techniques. Flow Measurement and Instrumentation, 66, 67-78. https://doi.org/10.1016/j.flowmeasinst.2019.02.008

The electric power generation and oil/gas production industries have a strong interest in the physical characterization of conducting and non-conducting liquid films that are formed during the flow of liquids in pipes. Conducting and non-conducting l... Read More about Thin film thickness measurements in two phase annular flows using ultrasonic pulse echo techniques.