مقاله A numerical investigation of conjugated-natural convection heat transfer enhancement of a nanofluid in an annular tube driven by inner heat generating solid cylinder : تی پی بین

خلاصه مقاله

Laminar conjugate heat transfer by natural convection and conduction in a vertical annulus formed between an inner heat generating solid circular cylinder and an outer isothermal cylindrical boundary has been studied by a numerical method. It is assumed that the two sealed ends of the tube to be adiabatic. Governing equations are derived based on the conceptual model in the cylindrical coordinate system. The governing equations have been solved using the finite volume approach, using SIMPLE algorithm on the collocated arrangement. Results are presented for the flow and temperature distributions and Nusselt numbers on different cross sectional planes and longitudinal sections for Rayleigh number ranging from 10⁵ to 10⁸, solid volume fraction of 0‹φ‹0.05 with copper-water nanofluid as the working medium.

نویسندگان

Mina Shahi [ Department of Mechanical Engineering, Faculty of Engineering, Semnan University, Semnan, Iran ]

Amir Houshang Mahmoudi [ Department of Mechanical Engineering, Faculty of Engineering, Semnan University, Semnan, Iran ]

Farhad Talebi [ Department of Mechanical Engineering, Faculty of Engineering, Semnan University, Semnan, Iran ]

کلمات کلیدی

Annular tube Volumetric heat generation Conjugated Natural convection heat transfer Nanofluid Heat generating solid rod Solid concentration Numerical method

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International Communications in Heat and Mass Transfer

International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.

حوزه های تحت پوشش : Heat and Mass Transfer