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BIFURCATIONS OF NATURAL CONVECTION FLOWS FROM AN ENCLOSED CYLINDRICAL HEAT SOURCE

Diego Angelia,*, Arturo Paganob, Mauro A. Corticellia, Alberto Ficherab, Giovanni S. Barozzia

a DIMeC - Dipartimento di Ingegneria Meccanica e Civile, Università di Modena e Reggio Emilia, Via Vignolese, 905, I-41125, Modena (MO), Italy
b DIIM - Dipartimento di Ingegneria Industriale e Meccanica, Università degli Studi di Catania, Viale Andrea Doria, 6, I-95125 Catania (CT), Italy

* Corresponding Author: Email: email

Frontiers in Heat and Mass Transfer 2011, 2(2), 1-9. https://doi.org/10.5098/hmt.v2.2.3003

Abstract

A numerical analysis of transitional natural convection from a confined thermal source is presented. The system considered is an air-filled, square-sectioned 2D enclosure containing a horizontal heated cylinder. The resulting flow is investigated with respect to the variation of the Rayleigh number, for three values of the aspect ratio A. The first bifurcation of the low-Ra fixed-point solution is tracked for each A-value. Chaotic flow features are detailed for the case A = 2.5. The supercritical behaviour of the system is investigated using nonlinear analysis tools and phase-space representations, and the effect of the flow on heat transfer is discussed.

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APA Style
Angeli, D., Pagano, A., Corticelli, M.A., Fichera, A., Barozzi, G.S. (2011). BIFURCATIONS OF NATURAL CONVECTION FLOWS FROM AN ENCLOSED CYLINDRICAL HEAT SOURCE. Frontiers in Heat and Mass Transfer, 2(2), 1-9. https://doi.org/10.5098/hmt.v2.2.3003
Vancouver Style
Angeli D, Pagano A, Corticelli MA, Fichera A, Barozzi GS. BIFURCATIONS OF NATURAL CONVECTION FLOWS FROM AN ENCLOSED CYLINDRICAL HEAT SOURCE. Front Heat Mass Transf. 2011;2(2):1-9 https://doi.org/10.5098/hmt.v2.2.3003
IEEE Style
D. Angeli, A. Pagano, M.A. Corticelli, A. Fichera, and G.S. Barozzi "BIFURCATIONS OF NATURAL CONVECTION FLOWS FROM AN ENCLOSED CYLINDRICAL HEAT SOURCE," Front. Heat Mass Transf., vol. 2, no. 2, pp. 1-9. 2011. https://doi.org/10.5098/hmt.v2.2.3003



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