Publicou 12 edições por ano
ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508
Indexed in
Fluid Flow and Heat Transfer around Circular Cylinders in the Presence and No-Presence of Porous Media
RESUMO
Steady-state laminar and incompressible fluid flow and forced-convection heat transfer from a circular cylinder and an array of circular cylinders in the presence and no-presence of porous media are investigated. Various mathematical and numerical models are compared and the effects of porous media on heat transfer enhancement are studied. Navier-Stokes equations are used for the analysis of laminar fluid flow and heat transfer. However, the Darcy and extended Darcy-Brinkman models are used for the analysis of fluid flow and heat transfer in porous media. The cylinders are at constant temperature and the analysis is restricted to the low- and intermediate-Peclet-number regimes (Pr = 1, Re ≤ 40 for a single cylinder and Re ≤ 300 for an array of cylinders), and high Darcy numbers (10−4 ≤ Da ≤ 10−2 ). The governing equations are discretized using the finite-volume approach based on collocated and staggered grids. The first-order upwind and power-law schemes and also the QUICK scheme are used in the numerical solutions. Parametric studies have been done for better understanding of the porous-medium effects on the Nusselt-number distribution, and flow, temperature, and pressure fields around a single cylinder and an array of cylinders. The results are compared with available numerical and experimental data in the literature and show good agreement in all compared cases.
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Rashidi Saman, Tamayol Ali, Valipour Mohammad Sadegh, Shokri Nima, Fluid flow and forced convection heat transfer around a solid cylinder wrapped with a porous ring, International Journal of Heat and Mass Transfer, 63, 2013. Crossref
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Al-Sumaily Gazy F., Thompson Mark C., Forced convection from a circular cylinder in pulsating flow with and without the presence of porous media, International Journal of Heat and Mass Transfer, 61, 2013. Crossref
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Rashidi Saman, Abolfazli Esfahani Javad, Valipour Mohammad Sadegh, Bovand Masoud, Pop Ioan, Magnetohydrodynamic effects on flow structures and heat transfer over two cylinders wrapped with a porous layer in side, International Journal of Numerical Methods for Heat & Fluid Flow, 26, 5, 2016. Crossref
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