Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i1-3.290
pages 329-338

Convective Heat Transfer from a Heated Convex Cylinder with an Axisymmetric Backward-Facing Step

K. C. Kim
Department of Mechanical and Production Engineering, Pusan National University, Pusan, Korea
M. Niaki
Department of Mechanical Engineering, University of Ottawa, Ottawa, Canada
Y. P. Lee
Department of Mechanical Engineering, University of Ottawa, Ottawa, Ontario, Canada, KIN 6N5

Краткое описание

Local heat transfer coefficients were measured in the separating, reattaching and redeveloping axisymmetric regions of turbulent boundary layer over the wall of convex cylinders with a uniform wall heat flux. Measurements were made with three different diameters of cylinders with five different diameters of the obstructions. The range of Reynolds number based on step height was between 4000 to 100000.
The study demonstrates that the maximum Nusselt number increases with decreasing cylinder radius and are always greater than those for the two-dimensional backward-facing step flow at the same conditions of the step height and flow velocity. It was also observed that the heat transfer in the redeveloping region increases with an increase in the radius convex curvature. An empirical equation is proposed for the Nusselt number at the reattachment point, correlated as a function of the Reynolds number and the diameter ratio.


Articles with similar content:

NUMERICAL INVESTIGATION OF INTERNAL FLOW AND HEAT TRANSFER BETWEEN CYLINDER PIPES
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Ganbat Davaa, Odgerel Jambal
LIQUID METAL TURBULENT HEAT TRANSFER IN ECCENTRIC ANNULI
International Heat Transfer Conference 9, Vol.6, 1990, issue
H. Ohtsuka, Kenjiro Suzuki, J. S. Szmyd
FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS PAST TWO TANDEM ELLIPTIC CYLINDERS: A NUMERICAL STUDY
Journal of Enhanced Heat Transfer, Vol.25, 2018, issue 4-5
Vivek Puliyeri, K. Arul Prakash, Soumya Sunakraneni
An Insertion Technique Using the Transient Method with Liquid Crystals For Enhanced Heat Transfer Measurements in Ducts
Journal of Enhanced Heat Transfer, Vol.1, 1994, issue 2
Xiaojun Terry Yan, James W. Baughn, Jon L. Roby
EXPERIMENTAL STUDY OF THE DISSIMILARITY BETWEEN HEAT TRANSFER AND DRAG AT DIMPLED SURFACES IN THE FLOW, DISTURBED BY THE CYLINDER ROD
International Heat Transfer Conference 16, Vol.14, 2018, issue
Andrey G. Zditovets, Yu. A. Vinogradov , Mark M. Strongin, N. A. Kiselev