A two-dimensional single-phase natural convective heat transfer in a cavity with centrally located thin partition utilizing nanofluids has been numerically analyzed. The nanofluid used, which is composed of aluminum nanoparticles in suspension of Benzene, was provided at various solid volume fractions. The study is carried out numerically for a range of Rayleigh numbers, solid volume fractions, partition heights, and aspect ratios. Regions with the same velocity and temperature distributions are identified as a symmetry of sections. One-half of such a rectangular region is chosen as the computational domain, taking into account the symmetry about the thin partition. The governing equations are modeled by a stream function-vorticity formulation and are solved numerically by finite-difference schemes. Comparison with previously published numerical and experimental results showed excellent agreement. It is demonstrated that the partition height has a strong effect on both the heat transfer rate and the flow pattern. Results are presented in the form of streamlines and isotherm plots. The variation in the local Nusselt number along the thin partition provides valuable insight into the physical processes. A new correlation is proposed for the heat transfer studies in a wide range of thermal and geometric parameters.
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September 2009
Research Papers
Numerical Study of Natural Convective Heat Transfer in a Two-Dimensional Cavity With Centrally Located Partition Utilizing Nanofluids
S. H. Anilkumar,
S. H. Anilkumar
Department of Mechanical Engineering,
e-mail: shakumar69@gmail.com
SCT College of Engineering
, Trivandrum, Kerala 695018, India
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Biju T. Kuzhiveli
Biju T. Kuzhiveli
Department of Mechanical Engineering,
National Institute of Technology
, Kozhikode, Kerala 673601, India
Search for other works by this author on:
S. H. Anilkumar
Department of Mechanical Engineering,
SCT College of Engineering
, Trivandrum, Kerala 695018, Indiae-mail: shakumar69@gmail.com
Biju T. Kuzhiveli
Department of Mechanical Engineering,
National Institute of Technology
, Kozhikode, Kerala 673601, IndiaJ. Thermal Sci. Eng. Appl. Sep 2009, 1(3): 031004 (7 pages)
Published Online: February 18, 2010
Article history
Received:
June 18, 2009
Revised:
January 17, 2010
Online:
February 18, 2010
Published:
February 18, 2010
Citation
Anilkumar, S. H., and Kuzhiveli, B. T. (February 18, 2010). "Numerical Study of Natural Convective Heat Transfer in a Two-Dimensional Cavity With Centrally Located Partition Utilizing Nanofluids." ASME. J. Thermal Sci. Eng. Appl. September 2009; 1(3): 031004. https://doi.org/10.1115/1.4001048
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