Characteristics of Rayleigh–Bénard Convection in a Rectangular Channel With an Inner Hot Circular Cylinder-Reference-Cited by-同舟云学术

Characteristics of Rayleigh–Bénard Convection in a Rectangular Channel With an Inner Hot Circular Cylinder

Published:2015-06-09 Issue:11 Volume:137 Page:
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Choi Changyoung¹,Yeong Ha Man²,Sik Yoon Hyun³

Affiliation:

1. School of Mechanical Engineering, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Korea

2. School of Mechanical Engineering, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Korea e-mail:

3. Global Core Research Center for Ships and Offshore Plants, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Korea

Abstract

The immersed boundary method (IBM) was used for three-dimensional numerical simulations, and the results for natural convection in a rectangular channel with an inner hot circular cylinder are presented. This simulation used Rayleigh numbers spanning 3 orders of magnitude, from 1×103 to 1×106. The Prandtl number considered in this study was 0.7. We investigated the effects of the inner cylinder's radius on the thermal convection and heat transfer in the space between the cylinder and rectangular channel. A map of the thermal and flow regimes is presented as a function of the cylinder's radius and the Rayleigh number.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/doi/10.1115/1.4030632/6210204/ht_137_11_112501.pdf

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