Solution to radiative transfer equation in a 3-D rectangular enclosure due to discontinuous heat flow divergence

Aghanajafi, Cyrus; Abjadpour, A.

doi:10.1007/s11012-012-9656-9

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…As the radiant enclosures have diverse destinations and utilizations in the industry many papers have been written on this topic [49][50][51][52] and some of them include conjugate heat transfer [53][54][55][56][57][58][59].…”

Section: Literature Reviewmentioning

confidence: 99%

New analytical methodologies for radiative heat transfer in enclosures based on matrix formalism and network analogy

Baracu

Costinaş

Ghiaus

et al. 2016

Applied Thermal Engineering

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Section: Literature Reviewmentioning

confidence: 99%

New analytical methodologies for radiative heat transfer in enclosures based on matrix formalism and network analogy

Baracu

Costinaş

Ghiaus

et al. 2016

Applied Thermal Engineering

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“…This problem was investigated by Zhao et al using the zone method [31] and Aghanajafi and Abjadpour using the Cartesian mesh in DOM [32]. In order to investigate the effects of mesh size on the numerical solution, uniform structured grids of 40 × 40 and 50 × 50 and unstructured triangular grids containing 676 and 1310 elements are considered.…”

Section: Square Enclosure With Three Internal Heatersmentioning

confidence: 99%

Discrete ordinates method applied to radiative transfer equation in complex geometries meshed by structured and unstructured grids

Aghanajafi

Abjadpour

2015

J Braz. Soc. Mech. Sci. Eng.

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“…Other researchers 36,37 worked on cooling hot sources in a rough, porous environment. Aghanajafi and Abjadpour 38,39 studied the radiation form of heat transfer in a rectangular environment.…”

Section: Introductionmentioning

confidence: 99%

Optimization of cooling of three radiant heat source inside an inclined porous medium using particle swarm optimization

Nobakhti

Aghanajafi

Khayat

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this study, an optimization of the maximum cooling of three radiant heat sources inside a closed square porous environment is performed. Three radiant-heat sources are cooled by airflow in a porous medium with an inclination angle. It is applied in the cooling of electronic equipment inside laptop computers. The cooling phenomenon is a function of five independent variables, such as the length of heat source, radiation parameter, Darcy number, the angle of inclination of a porous medium, and Rayleigh number. Differential equations are solved using the finite-difference approach. And those are solved by the Gauss-Seidel approach. Simulation is a numerical solution of the vorticity–stream equations. Coding is done in MATLAB software. And it is obtained the maximum objective function using the algorithm of particle swarm optimization. Cooling simulations are performed by drawing flow lines, constant temperature lines, dimensionless velocity component profiles, local Nusselt numbers, and mean Nusselt numbers. The main goal is to find the highest cooling rate in different amounts of five independent variables. The flow is in the laminar flow regime, and inclination angles are between 0 to 360°. The present study is the first study on the numerical solution of the cooling of three radiant-heat sources with an inclination angle by the porous media-filled square environment. And it is developed from the cooling of hot radiation walls problems in an inclined enclosure with constant temperature local radiant heat sources. This investigation showed the flow lines and their direction are influenced by the inclination angle of the porous medium strongly, and the maximum heat transfer is achieved at an angle of inclination of zero degrees. This investigation showed at the Darcy number, 0.001, and the radiation parameter, 1. The maximum and minimum Nusselt number is obtained for the inclination angle 60 and 180°, respectively.

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Solution to radiative transfer equation in a 3-D rectangular enclosure due to discontinuous heat flow divergence

Cited by 3 publications

References 11 publications

New analytical methodologies for radiative heat transfer in enclosures based on matrix formalism and network analogy

New analytical methodologies for radiative heat transfer in enclosures based on matrix formalism and network analogy

Discrete ordinates method applied to radiative transfer equation in complex geometries meshed by structured and unstructured grids

Optimization of cooling of three radiant heat source inside an inclined porous medium using particle swarm optimization

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