Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Journal of Enhanced Heat Transfer
Factor de Impacto: 1.406 Factor de Impacto de 5 años: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Imprimir: 1065-5131
ISSN En Línea: 1026-5511

Volumes:
Volumen 27, 2020 Volumen 26, 2019 Volumen 25, 2018 Volumen 24, 2017 Volumen 23, 2016 Volumen 22, 2015 Volumen 21, 2014 Volumen 20, 2013 Volumen 19, 2012 Volumen 18, 2011 Volumen 17, 2010 Volumen 16, 2009 Volumen 15, 2008 Volumen 14, 2007 Volumen 13, 2006 Volumen 12, 2005 Volumen 11, 2004 Volumen 10, 2003 Volumen 9, 2002 Volumen 8, 2001 Volumen 7, 2000 Volumen 6, 1999 Volumen 5, 1998 Volumen 4, 1997 Volumen 3, 1996 Volumen 2, 1995 Volumen 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v17.i4.20
pages 301-311

Experimental Study of Fluid Flow and Heat Transfer in a Rectangular Channel with Novel Longitudinal Vortex Generators

Chengying Qi
School of Energy and Environmental Engineering, Hebei University of Technology
Chunhua Min
School of Energy and Environmental Engineering, Hebei University of Technology
Shangqun Xie
School of Energy and Environmental Engineering, Hebei University of Technology
Xiangfei Kong
School of Energy and Environmental Engineering, Hebei University of Technology

SINOPSIS

A novel combined longitudinal vortex generator (LVG), comprising a rectangular wing mounted with an accessory rectangular wing, was presented and studied. Gas flow and heat transfer characteristics of this LVG in a rectangular channel were obtained experimentally and compared with those of the original rectangular LVGs under identical pressure gradient conditions. Results showed that a 45° orientation to the flow direction has optimal heat transfer characteristics for the original rectangular LVGs. In contrast, the combined LVGs, especially the upstream accessory wings, show higher heat transfer and lower gas flow resistance performances, with an optimal secondary orientation of 30°. For the combined LVGs, because the strong longitudinal vortices generated by the LVGs enhance the heat transfer between gas and channel walls, the temperature gradually increases from the centerline of the heater wall to the edge. The wall equivalent temperature with accessory wings is lower than that without accessory wings.


Articles with similar content:

EXPERIMENTAL AND NUMERICAL STUDY OF HEAT TRANSFER OVER A FINNED ELLIPTICAL FLAT TUBE FITTED WITH LONGITUDINAL VORTEX GENERATORS ON THE RECTANGULAR FIN SURFACE
Journal of Enhanced Heat Transfer, Vol.20, 2013, issue 5
Yongping Yang, Xiaoze Du, Li Li, Lijun Yang, Yuwen Zhang, Chao Xu
AN EXPERIMENTAL STUDY OF ENHANCEMENT OF FORCED CONVECTION HEAT TRANSFER FROM PARALLEL PLATE FINS WITH CUTS
International Heat Transfer Conference 13, Vol.0, 2006, issue
Ignacio Carvajal-Mariscal, A. M. Terekh, V. A. Rogachov, V. Nezym, E. N. Pis'mennyi, Georgiy Polupan
NUMERICAL STUDY OF FORCED CONVECTION HEAT TRANSFER OVER CIRCULAR AND OVAL TUBE BANKS USING RECTANGULAR WINGLET VORTEX GENERATORS
First Thermal and Fluids Engineering Summer Conference, Vol.8, 2015, issue
Md Ashiqur Rahman, Md. R. Haque
HEAT TRANSFER ENHANCEMENT IN THE SHELL SIDE OF THE SELF-SUPPORT IN RECTANGULAR CONVERGING−DIVERGING TUBE BUNDLE HEAT EXCHANGERS WITH DIFFERENT INSERTS
Heat Transfer Research, Vol.43, 2012, issue 7
Xianhe Deng, Feng Jiao
EFFECTS OF CONTRACTION FINS ON HEAT REMOVAL FROM HEATED ELEMENTS
International Heat Transfer Conference 11, Vol.13, 1998, issue
T. Miyazawa, Koichi Ichimiya, M. Katayama