Repositori institucional URV
Español Català English
TITLE:
Numerical prediction of flow patterns in bubble pumps - imarina:9285064

URV's Author/s:Bourouis Chebata, Mahmoud
Author, as appears in the article.:Benhmidene A; Chaouachi B; Bourouis M; Gabsi S
Author's mail:mahmoud.bourouis@urv.cat
Author identifier:0000-0003-2476-5967
Journal publication year:2011
Publication Type:Journal Publications
APA:Benhmidene A; Chaouachi B; Bourouis M; Gabsi S (2011). Numerical prediction of flow patterns in bubble pumps. Journal Of Fluids Engineering-Transactions Of The Asme, 133(3), -. DOI: 10.1115/1.4003664
Papper original source:Journal Of Fluids Engineering-Transactions Of The Asme. 133 (3):
Abstract:In the present study, the ammonia-water mixing flow in a bubble pump is numerically simulated. The flow patterns of a two-phase flow in a bubble pump were studied under different conditions of heat flux and tube diameter. A one-dimensional two-fluid model was developed under constant heat flux. This model was used to predict the variations in void fraction and liquid and vapor velocities throughout the tube. Then, the void fraction profile and the curve of liquid velocity versus vapor velocity were used to predict the flow patterns along the tube length. It was found that at heat fluxes below 15 kW m -2, bubbly, slug, and churn flows are the dominating regimes, and the length of these flow regimes depends on the tube diameter. For heat fluxes higher than 15 kW m-2, the bubble pump operates under the churn and annular regimes, and the bubble pump performance is improved when the tube diameter increases. © 2011 American Society of Mechanical Engineers.
Article's DOI:10.1115/1.4003664
Link to the original source:https://asmedigitalcollection.asme.org/fluidsengineering/article-abstract/133/3/031302/412211/Numerical-Prediction-of-Flow-Patterns-in-Bubble?redirectedFrom=fulltext
Papper version:info:eu-repo/semantics/acceptedVersion
licence for use:https://creativecommons.org/licenses/by/3.0/es/
Department:Enginyeria Mecànica
Licence document URL:https://repositori.urv.cat/ca/proteccio-de-dades/
Thematic Areas:Mechanical engineering
Engineering, mechanical
Engenharias iii
Keywords:Void fraction profiles
Void fraction
Vertical 2-phase flow
Vapors
Vapor velocities
Two phase flow
Two fluid model
Tubes (components)
Tubes
Tube length
Tube diameters
Transition
Thermodynamic properties
System
Simulation
Pumps
Pump performance
Numerical predictions
Liquids
Liquid velocities
Heat flux
Gas-liquid flow
Forecasting
Flow simulation
Flow regimes
Flow patterns
Flow pattern
Constant heat flux
Churn flow
Channels
Bubble pump
Binary-mixtures
Ammonia water
2-fluid model
Entity:Universitat Rovira i Virgili
Record's date:2023-02-19
Search your record at:

Available files
FileDescriptionFormat
DocumentPrincipalDocumentPrincipalapplication/pdf

Information

© 2011 Universitat Rovira i Virgili