Natural convection in triangular enclosures is an important problem. It displays well the generic attributes of this class of convection, with its dependence on enclosure geometry, orientation and thermal boundary conditions. It is particularly rich in its variety of flow regimes and thermal fields as well as having significant practical application. In this paper, a comprehensive view of the research area is sought by critically examining the experimental and numerical approaches adopted in studies of this problem in the literature. Different thermal boundary conditions for the evolution of the flow regimes and thermal fields are considered. Effects of changes in pitch angle and the Rayleigh number on the flow and thermal fields are examined in detail. Although most of the past studies are in the laminar regime, the review extends up to the recent studies of the low turbulent regime. Finally, areas of further research are highlighted.

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# A Comprehensive Review of Natural Convection in Triangular Enclosures

O. M. Kamiyo,

O. M. Kamiyo

Department of Mechanical Engineering,

ola_kamiyo@hotmail.com
University of Lagos

, Lagos, Nigeria

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D. Angeli,

D. Angeli

DIMeC - Dipartimento di Ingegneria Meccanica e Civile,

diego.angeli@unimore.it
Università di Modena e Reggio Emilia

, via Vignolese 905, I-41100 Modena, Italy

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G. S. Barozzi,

G. S. Barozzi

DIMeC - Dipartimento di Ingegneria Meccanica e Civile,

giovanni.barozzi@unimore.it
Università di Modena e Reggio Emilia

, via Vignolese 905, I-41100 Modena, Italy

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M. W. Collins,

M. W. Collins

School of Engineering and Design,

collinmw@hotmail.com
Brunel University

, Uxbridge, Middlesex, UB8 3PH, UK

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V.O.S. Olunloyo,

V.O.S. Olunloyo

Department of Systems Engineering,

vosolunloyo@hotmail.com
University of Lagos

, Lagos, Nigeria

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S.O. Talabi

S.O. Talabi

Retired Professor

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O. M. Kamiyo

D. Angeli

DIMeC - Dipartimento di Ingegneria Meccanica e Civile,

Università di Modena e Reggio Emilia

, via Vignolese 905, I-41100 Modena, Italy

diego.angeli@unimore.it

G. S. Barozzi

Università di Modena e Reggio Emilia

, via Vignolese 905, I-41100 Modena, Italy

giovanni.barozzi@unimore.it

M. W. Collins

School of Engineering and Design,

Brunel University

, Uxbridge, Middlesex, UB8 3PH, UK

collinmw@hotmail.com

V.O.S. Olunloyo

S.O. Talabi
Retired Professor

*Appl. Mech. Rev*. Nov 2010, 63(6): 060801 (13 pages)

**Published Online:**June 21, 2011

Article history

Received:

February 3, 2011

Revised:

May 5, 2011

Accepted:

May 12, 2011

Online:

June 21, 2011

Published:

June 21, 2011

Citation

Kamiyo, O. M., Angeli, D., Barozzi, G. S., Collins, M. W., Olunloyo, V., and Talabi, S. (June 21, 2011). "A Comprehensive Review of Natural Convection in Triangular Enclosures." ASME. *Appl. Mech. Rev*. November 2010; 63(6): 060801. https://doi.org/10.1115/1.4004290

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