Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Abdelwahid AZZI"'
Publikováno v:
ENP Engineering Science Journal, Vol 1, Iss 2, Pp 69-75 (2021)
Two-phase Gas-liquid flows have many industrial uses, such as hydrocarbon transportation and energy production. The knowledge and an accurate determination of the gas phase's proportion rate in the two-phase mixture known as the gas void fraction is
Externí odkaz:
https://doaj.org/article/2cede769052a478396f3fa628f82dd7a
Publikováno v:
SPE Journal. 27:1577-1596
SummaryThe intermittent gas-liquid flow can be seen in both vertical upward and horizontal pipes. In a vertical pipe, the gas pockets of intermittent flow can be present as cap bubbles (cap bubble flow) or Taylor bubbles (slug flow), while in a horiz
Autor:
Ayoub Boutaghane, Abderraouf Arabi, Nouara Ibrahim-Rassoul, Abdelsalam Al-sarkhi, Abdelwahid Azzi
Publikováno v:
Journal of Energy Resources Technology. 145
In horizontal configuration, the gas-liquid intermittent flow can be plug flow or slug flow. Different works have demonstrated that the two flow patterns, despite their similarity, are differents. Thus, it is important to differentiate between them i
Autor:
Buddhika N. Hewakandamby, Rabah Kadi, Abdelwahid Azzi, Abderraouf Arabi, Abdelsalam Al-Sarkhi
Publikováno v:
SPE Production & Operations. 36:703-720
SummaryIntermittent flow is one of the most complex flow regimes in horizontal pipes. Various studies have classified this regime as two distinct subregimes: plug and slug flow. This classification has been made based on flow observations. In this wo
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering. 235:1005-1016
Fluidized beds are widely used in many industrial processes as they ensure the desirable high-intensity heat and mass transfers between gas and particles and offer the possibility to perform operations in a continuous mode and powders recycling. Some
Autor:
Ammar Zeghloul, Abdelkader Messilem, Nabil Ghendour, Abdelwahid Azzi, Abbas Hasan, Abdelsalam Al-Sarkhi
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 235:1567-1584
An accurate two-phase flow rate measurement is essential in many applications and industries such as; oil/gas, chemical, pipeline transportation and nuclear industry. This paper presents the findings obtained from two-phase flow rate measurements usi
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. :095440622311521
This paper presents experimental investigation of flow configurations and pressure drop of single-phase water flow and two-phase air-water flow in a vertical annulus. The annular test section had a concentric geometry with a casing and tubing diamete
Publikováno v:
European Journal of Mechanics - B/Fluids. 71:113-125
Three-dimensional turbulent flow over a circular cylinder performing sinusoidal rotational motions around its axis is investigated using Large Eddy Simulation (LES). The simulation is carried out for Reynolds number equal to 3900 with rotation rate (
Publikováno v:
Progress in Nuclear Energy. 108:428-437
Characteristics of the slug flow, mean void fraction, liquid slug and Taylor bubble lengths; and structure frequency were all extracted from the void fraction time series. Average void fractions at nine axial positions have been measured on a 6 m lon
Publikováno v:
International Journal of Thermal Sciences. 126:263-271
This paper presents a numerical modeling of steam condensation in a vertical channel in the presence of a noncondensable gas (air) during forced convection. A laminar vapor steam-air mixture flows downwards through a rectangular channel with a consta