Autor segons l'article: Bouyahiaoui, Hiba; Saidj, Faiza; Arabi, Abderraouf; Al-Sarkhi, Abdelsalam; Azzi, Abdelwahid
Departament: Enginyeria Mecànica
Autor/s de la URV: Arabi, Abderraouf
Resum: Using an air-water mixture and 34 mm ID pipe, a series of pressure drop and void fraction measurements were collected. The observed flow regimes were falling film, annular, bubbly, cap bubble, slug, and churn flows. The temporal fluctuations of void fraction and pressure drop measurements were firstly studied using signals visualization and PDF. It was revealed that both signals can be used to identify the flow regimes. A new flow pattern map is proposed based on the Froude number, calculated using the mixture velocity of the two phases, and the ratio of gas-to-liquid superficial velocities. The behaviors of the total and frictional pressure drops were studied and the influence of the superficial velocities as well as the flow regimes were identified. The experimental results were compared to four existing vertically downward frictional pressure drop models, none of which provided accurate predictions.
Àrees temàtiques: Physics and astronomy (miscellaneous) Physics and astronomy (all) Mechanics Mechanical engineering Matemática / probabilidade e estatística General physics and astronomy Fluid flow and transfer processes Engenharias iv Engenharias iii Engenharias ii Ciência de alimentos Ciência da computação Biodiversidade
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: abderraouf.arabi@urv.cat
Data d'alta del registre: 2024-09-21
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0301932223003312
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: International Journal Of Multiphase Flow. 172 104711-
Referència de l'ítem segons les normes APA: Bouyahiaoui, Hiba; Saidj, Faiza; Arabi, Abderraouf; Al-Sarkhi, Abdelsalam; Azzi, Abdelwahid (2024). Vertically downward gas-liquid flow: Void fraction and pressure drop. International Journal Of Multiphase Flow, 172(), 104711-. DOI: 10.1016/j.ijmultiphaseflow.2023.104711
DOI de l'article: 10.1016/j.ijmultiphaseflow.2023.104711
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV