ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 0.7

ISSN 印刷: 1940-2503
ISSN オンライン: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2012006040
pages 11-25

NUMERICAL ANALYSIS OF CONJUGATE NATURAL CONVECTION AND SURFACE RADIATION IN AN ENCLOSURE WITH LOCAL HEAT SOURCE

Semen G. Martyushev
Faculty of Mechanics and Mathematics, Tomsk State University, Tomsk, 634050, Russia
Mikhail A. Sheremet
Department of Theoretical Mechanics, Tomsk State University, 634050, Tomsk, Russia; Institute of Power Engineering, Tomsk Polytechnic University, 634050, Tomsk, Russia

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 104Ra ≤ 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.


Articles with similar content:

3D CONJUGATE NATURAL CONVECTION WITH SURFACE RADIATION IN AN ENCLOSURE
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2014, issue
Semen G. Martyushev , Mikhail A. Sheremet, Igor V. Miroshnichenko
NON-DARCIAN AND ANISOTROPIC EFFECTS ON THE CONJUGATE HEAT TRANSFER IN A POROUS ENCLOSURE WITH FINITE THICKNESS WALLS
Journal of Porous Media, Vol.17, 2014, issue 4
Sameh Elsayed Ahmed, Abdelraheem M. Aly
UNSTEADY NATURAL CONVECTION OF NANOFLUIDS IN AN ENCLOSURE HAVING FINITE THICKNESS WALLS
Computational Thermal Sciences: An International Journal, Vol.3, 2011, issue 5
Mikhail A. Sheremet, Genii V. Kuznetsov
NUMERICAL OPTIMIZATION OF DOUBLE-DIFFUSIVE MIXED CONVECTION IN A RECTANGULAR ENCLOSURE WITH A REACTANT FLUID
Heat Transfer Research, Vol.48, 2017, issue 18
A. Rodriguez-Leon, Guillermo E. Ovando-Chacon, C. Garcia-Arellano, Juan C. Prince-Avelino, S. L. Ovando-Chacon
RAYLEIGH-BENARD CONVECTION IN A VERTICAL CYLINDER
ICHMT DIGITAL LIBRARY ONLINE, Vol.4, 2001, issue
Seng S. Leong