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Heat Transfer Research
Fator do impacto: 1.199 FI de cinco anos: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

Volumes:
Volume 51, 2020 Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v37.i5.30
pages 395-405

Natural Convection Heat Transfer in a Rotating Enclosure with Three Rows of Discrete Heat Sources

L. F. Jin
School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798
C. P. Tso
School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798
K. W. Tou
School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798

RESUMO

A numerical study of air-filled slowly rotating enclosure with three rows of discrete heat sources is made. The enclosure rotates around its longitudinal horizontal axis. Three physically realizable phenomena, uniperiodic oscillation, multiperiodic oscillation, and chaotic oscillation are identified numerically. In the cases of stationary or low rotation speed, buoyancy force causes clockwise and counterclockwise circulations, and correspondingly there are three or two local peak Nusselt numbers in each periodic oscillation. With increasing rotation, clockwise circulation is enlarged and tends to dominate the counterclockwise circulation. The second and third peak Nusselt numbers become weakened and negligible. In a stationary case, heat transfer behavior for the heaters of the top row and bottom row is symmetrical, but with an increase in the speed of rotation, it gradually becomes asymmetrical.


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