NUMERICAL SIMULATION OF NATURAL CONVECTION FROM A PAIR OF HOT CYLINDERS IN A COLD SQUARE ENCLOSURE IN DIFFERENT BOUNDARY CONDITIONS | Zendy

Rezvan Abdi | Zendy; Niki Rezazadeh | Zendy

Open Access

NUMERICAL SIMULATION OF NATURAL CONVECTION FROM A PAIR OF HOT CYLINDERS IN A COLD SQUARE ENCLOSURE IN DIFFERENT BOUNDARY CONDITIONS

Author(s) -

Rezvan Abdi,

Niki Rezazadeh

Publication year - 2016

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.7.30

Subject(s) - enclosure , natural convection , square (algebra) , thermal fluids , frontier , boundary (topology) , thermal , mechanics , heat transfer , computer simulation , mechanical engineering , materials science , thermodynamics , engineering , convective heat transfer , physics , political science , mathematics , law , geometry , telecommunications , mathematical analysis

This study investigates the heat transfer in the mode of natural convection from a pair of hot cylinders to a cold square enclosure. Effects of boundary conditions of the enclosure on the rate of heat transfer from a pair of isothermal hot cylinders are investigated at a Rayleigh number of 105. The cylinders are arranged in a horizontal array at the middle height of enclosure. The commercial software, Fluent (V.6.3.26), is utilized to solve the problem using the Finite Volume Method. The streamlines as well as isothermal lines of the problem are reported. Moreover, the local Nusselt number on the walls of enclosure is calculated. The results show that the boundary conditions of the enclosure have crucial effects on the heat transfer of a pair of hot cylinders.

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