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D, Amit Datta
- A Numerical Investigation of Natural Convection in a Porous Enclosure with Lower Wall Heating
Authors
1 Department Mechanical Engineering, Bangalore Institute of Technology (BIT), Bengaluru, India., IN
2 Students, Department Mechanical Engineering, Bangalore Institute of Technology (BIT), Bengaluru, India., IN
Source
Journal of Mines, Metals and Fuels, Vol 70, No 10A (2022), Pagination: 199-205Abstract
Fluid movement and heat transmission study of consistent and non-consistent heated porous material has emerged as a discrete study field in the last thirty years, owing to its relevance in abundant applications, including waste used in nuclear power plant and fibres insulations, solar collectors, and so on. In recent decades, there has been a surge in interest in studying various elements of the porous media. This enormous level of attention has resulted in a slew of research publications addressing a wide variety of issues affecting porous materials, including understanding their structure, deformation, and natural convective heat transport, to name a few. The investigate of the porous material is one of the classical topics in field of science. In this paper, we investigate the free convection in a trapezoidal porous enclosure with different Rayleigh numbers (10 1 ≤ Ra ≤ 103) and aspect ratios (0.25 ≤ H/L ≤ 1). The effect of Ra and AR on temperature contours, local and mean Nusselt numbers has been analyzed and presented. This provided a result in which the mean Nu increased by increasing the H/L ratio and Modified Ra. In addition, convection mode is dominant when Rayleigh number is high. The outcome results are differentiated with those found in the literature and were found to be in good accordance.
Keywords
Trapezoidal Cavity, Buoyant Heat Transfer, Aspect Ratio, and Nusselt Number.
References
- A.B. Irfan, Z.A. Zainal, P.A. Aswatha Narayana, K.N. Seetharamu, Heat transfer by radiation and natural convection through a vertical cylindrical annular porous medium, Int. Commun. Heat Mass Transfer 33 (2006) 500–507.
- Irfan AnjumBadruddian “Investigation of heat transfer in irregular porous cavity subjected to various boundary conditions” International Journal of Numerical Method for Heat and Fluid flow. 2018.
- Wiratchada and Kalhoka “Natural Convection in Porous Square Cavities with Discrete Heat Sources on Bottom and Side Walls” Thai Journal of Mathematics. Vol.12(2014), pp 207-221.
- F.L. Bello-Ochende, A heat function formulation for thermal convection in a square cavity, Comput. Methods Appl. Mech. Eng. 68 (1988) 141–149.
- T. Basak, S. Roy, A.R. Balakrishnan, Natural convection in a square cavity filled with a porous medium: effects of various thermal boundary conditions, Int. J. Heat Mass Transfer 49 (2006) 1430–1441.
- YasinVarol, Hakan F. Oztop, AsafVarol, “Free convection in porous media filled right-angle triangular enclosures”, Int. communications in Heat and Mass Transfer, Vol. 33, 2006, pp 1190- 1197.
- Dr Falah A. AboodNumerical Analysis of free convection in a square and in a right-Angle trapezoidal enclosure filled with porous MediaAl-Qadisiya Journal for Engineering Sciences Vol. 4 No. 3 Year 2011.
- K. Aparna and Seetharamu “Investigation on the effect of non-uniform temperature on fluid flow and heat transfer in trapezoidal cavity filled with porous media” International Journal of Heat and Mass Transfer 108 (2017) pp , 63-78.
- Nawaf Saeid, Ioan Pop - Natural Convection from a Discrete Heater in a Square Cavity Filled with a Porous Medium January 2005 Journal of Porous Media 8(1): 55-64
- Vijaya Kumara V.M, Aswatha,Aparna.K and Seetharamu. K. N Buoyant Heat Transfer in a Porous Cavity of Trapezoidal Shape. International Journal of Science, Technology, Engineering and Management–A VTU Publication 2020 Vol: 2, No: 1, pp: 41-49.