Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity

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Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity	952 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1088/1757-899X/93/1/012008

Title: Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity
Creator: Miroshnichenko, Igor V.
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Sheremet, Mikhail A.
Date: 2015
DOI: 10.1088/1757-899X/93/1/012008
Description: Turbulent natural convection with the interaction of surface radiation in square enclosure has been numerically studied. The governing equations are solved contemporaneously by finite difference method to obtain the velocity, temperature and heat flux distributions. Turbulence has been modeled using the standard k-ε model. The change of convective and radiative Nusselt numbers with respect to time has been described. The analysis is carried out over a wide range of Rayleigh number from 108 to 1010. The effect of this key parameter on temperature and velocity distributions, convective and radiative Nusselt numbers has been investigated. The results clearly demonstrate a significant effect of buoyancy ratio on unsteady turbulent heat transfer.