By a News Reporter-Staff News Editor at Energy Weekly News -- Data detailed on Energy Research have been presented. According to news reporting from Babol Sar, Iran, by VerticalNews journalists, research stated, "In this study, free convection heat transfer in a concentric annulus between a cold square and heated elliptic cylinders in presence of magnetic field is investigated. The square and elliptic cylinders are maintained at uniform temperatures and it is assumed that the walls are insulating magnetic field."
The news correspondents obtained a quote from the research from the Babol University of Technology, "Lattice Boltzmann method is applied to solve the governing equations. The effective thermal conductivity and viscosity of nanofluid are calculated by KKL (Koo-Kleinstreuer-Li) correlation. In this model effect of Brownian motion on the effective thermal conductivity is considered. The numerical investigation is carried out for different governing parameters namely; the Hartmann number, Rayleigh number and nanoparticle volume fraction. Also a correlation of Nusselt number corresponding to active parameters is presented. The results reveal that average Nusselt number is an increasing function of nanoparticle volume fraction and Rayleigh number, while it is a decreasing function of Hartmann number."
According to the news reporters, the research concluded: "Moreover it can be found that the enhancement in heat transfer increases as Hartmann number increases but it decreases with increase of Rayleigh number."
For more information on this research see: Numerical investigation of MHD effects on Al2O3-water nanofluid flow and heat transfer in a semi-annulus enclosure using LBM. Energy, 2013;60():501-510. Energy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Energy - www.elsevier.com/wps/product/cws_home/483)
Our news journalists report that additional information may be obtained by contacting M. Sheikholeslami, Babol Univ Technol, Dept. of Mech Engn, Babol Sar, Iran. Additional authors for this research include M. Gorji-Bandpy and D.D. Ganji.
Keywords for this news article include: Iran, Asia, Babol Sar, Energy Research
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