年間 6 号発行
ISSN 印刷: 1940-2503
ISSN オンライン: 1940-2554
Indexed in
NUMERICAL ANALYSIS OF CONJUGATE NATURAL CONVECTION AND SURFACE RADIATION IN AN ENCLOSURE WITH LOCAL HEAT SOURCE
要約
Mathematical simulation of natural convection and surface radiation in a square cavity having heat-conducting walls of finite thickness with a heat source located at the bottom of the cavity in convective heat exchange with an environment has been carried out. Numerical analysis has been based on a solution of the two-dimensional Boussinesq equations in the dimensionless variables such as stream function, vorticity, and temperature. Main attention was paid to the effects of Rayleigh number 104 ≤ Ra ≤ 106, an emissivity of internal surfaces of walls 0 ≤ ε < 1, a thermal conductivity ratio 1 ≤ k1,2 ≤ 15, a thickness of walls 0.1 ≤ l/L ≤ 0.3, and a dimensionless time 0 ≤ τ ≤ 100 on the velocity and temperature fields. The effect scales of the key parameters on the average Nusselt numbers have been determined.
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Martyushev Semen G., Sheremet Mikhail A., Conjugate natural convection combined with surface thermal radiation in an air filled cavity with internal heat source, International Journal of Thermal Sciences, 76, 2014. Crossref
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Martyushev S. G., Miroshnichenko I. V., Sheremet M. A., Numerical Analysis of Spatial Unsteady Regimes of Conjugate Convective-Radiative Heat Transfer in a Closed Volume with an Energy Source, Journal of Engineering Physics and Thermophysics, 87, 1, 2014. Crossref
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Martyushev Semen G., Sheremet Mikhail A., Conjugate natural convection combined with surface thermal radiation in a three-dimensional enclosure with a heat source, International Journal of Heat and Mass Transfer, 73, 2014. Crossref
-
Sheremet Mikhail A., Miroshnichenko Igor V., Effect of surface radiation on transient natural convection in a wavy-walled cavity, Numerical Heat Transfer, Part A: Applications, 69, 4, 2016. Crossref
-
Martyushev S. G., Sheremet M. A., Numerical analysis of 3D regimes of natural convection and surface radiation in a differentially heated enclosure, Journal of Engineering Thermophysics, 24, 1, 2015. Crossref
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Saravanan S., Sivaraj C., Combined natural convection and thermal radiation in a square cavity with a nonuniformly heated plate, Computers & Fluids, 117, 2015. Crossref
-
Omara M. A., Natural Convection from a Corrugated Heated Surface at the Bottom of Vented Rectangular Enclosure, Experimental Heat Transfer, 29, 6, 2016. Crossref
-
Yang G., Wu J. Y., Effects of natural convection, wall thermal conduction, and thermal radiation on heat transfer uniformity at a heated plate located at the bottom of a three-dimensional rectangular enclosure, Numerical Heat Transfer, Part A: Applications, 69, 6, 2016. Crossref
-
Miroshnichenko I.V., Sheremet M.A., Mohamad A.A., Numerical simulation of a conjugate turbulent natural convection combined with surface thermal radiation in an enclosure with a heat source, International Journal of Thermal Sciences, 109, 2016. Crossref
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Fu Zhenglong, Yu Xinhong, Shang Huaili, Wang Zhenzhen, Zhang Zhiyuan, A new modelling method for superalloy heating in resistance furnace using FLUENT, International Journal of Heat and Mass Transfer, 128, 2019. Crossref
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Dashti Mohammad Amin, Safavinejad Ali, Optimal design with entropy generation minimization approach in combined natural convection with surface radiation in a two-dimensional enclosure, Heat Transfer-Asian Research, 48, 8, 2019. Crossref
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Roy Nepal Chandra, Hossain Md. Anwar, Gorla Rama Subba Reddy, Siddiqa Sadia, Natural Convection Around a Locally Heated Circular Cylinder Placed in a Rectangular Enclosure, Journal of Non-Equilibrium Thermodynamics, 46, 1, 2021. Crossref
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Abderrahmane AISSA, Hatami Mohammad, Medebber M.A., Haroun Sahraoui, Ahmed Sameh E., Mohammed Sahnoun, Non-Newtonian nanofluid natural convective heat transfer in an inclined Half-annulus porous enclosure using FEM, Alexandria Engineering Journal, 61, 7, 2022. Crossref