Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Heat Transfer Research
Factor de Impacto: 0.404 Factor de Impacto de 5 años: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN En Línea: 2162-6561

Volumes:
Volumen 50, 2019 Volumen 49, 2018 Volumen 48, 2017 Volumen 47, 2016 Volumen 46, 2015 Volumen 45, 2014 Volumen 44, 2013 Volumen 43, 2012 Volumen 42, 2011 Volumen 41, 2010 Volumen 40, 2009 Volumen 39, 2008 Volumen 38, 2007 Volumen 37, 2006 Volumen 36, 2005 Volumen 35, 2004 Volumen 34, 2003 Volumen 33, 2002 Volumen 32, 2001 Volumen 31, 2000 Volumen 30, 1999 Volumen 29, 1998 Volumen 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v41.i2.30
pages 137-153

Numerical Study of Buoyancy-Opposed Wall Jet Flow

A. Abdel-Fattah
Department of Mechanical Power Engineering, Faculty of Engineering Menoufiya University, Shebin El-Kom

SINOPSIS

This paper describes a numerical study of the flow and thermal fields for an opposed wall jet. The hot water is injected from a plane jet down one wall of a vertical passage of a rectangular cross section into cooled water which moves slowly upward. The flow is assumed to be two-dimensional, steady, incompressible, and turbulent. The finite volume scheme is used to solve the continuity equation, momentum equations, energy equation, and k−ε model equations. The flow characteristics were studied by varying the Richardson number (0.0 ≤ Ri ≤ 0.052) and the ratio of background velocity to jet velocity (0.05 ≤ R ≤ 0.15). The results showed that the buoyancy limited the downward penetration of the jet and its lateral spread when the Richardson number increased. The shear layer formed at the interface between the two flow streams, and it became more concentrated at higher values of the Richardson number. In this region, the intensity of the turbulence became stronger and the turbulent shear stress had a minimum value. When the velocity ratio increased, the penetration of jet decreases, its lateral spreading becomes less. Also the temperature difference decreases with the velocity ratio increase. The numerical results give a good agreement with the experiment data of [1].


Articles with similar content:

NUMERICAL SIMULATION OF A TURBULENT FREE JET ISSUING FROM A RECTANGULAR NOZZLE
Computational Thermal Sciences: An International Journal, Vol.4, 2012, issue 1
Mohsen Akbarzadeh, Madjid Birouk, Brahim Sarh
Ice melting driven by natural convection in the rectangular cavity filled with water
ICHMT DIGITAL LIBRARY ONLINE, Vol.2, 2004, issue
Marija Zivic, Antun Galovic, Zdravko Virag
NUMERICAL INVESTIGATION OF THE FLOW FIELD OF A CONFINED TURBULENT IMPINGING JET
Turbulence and Shear Flow Phenomena -1 First International Symposium, Vol.0, 1999, issue
Dinh Vo-Ngoc , Latifa Rezg
NUMERICAL INVESTIGATION OF ROUND TURBULENT SWIRLING JET IMPINGEMENT HEAT TRANSFER FROM A HOT SURFACE
Computational Thermal Sciences: An International Journal, Vol.8, 2016, issue 6
Muhammad Ali Rob Sharif
NUMERICAL INVESTIGATION OF THE FLOW FIELD OF A CONFINED TURBULENT IMPINGING JET
TSFP DIGITAL LIBRARY ONLINE, Vol.1, 1999, issue
Dinh Vo-Ngoc , Latifa Rezg