Heat Transfer Analysis of Viscous Incompressible Fluid by Combined Natural Convection and Radiation in an Open Cavity
TLDR
In this article, the effect of radiation on natural convection of Newtonian fluid contained in an open cavity is investigated, and the governing partial differential equations are solved numerically using the Alternate Direct Implicit method together with the Successive Overrelaxation method.Abstract:
The effect of radiation on natural convection of Newtonian fluid contained in an open cavity is investigated in this study. The governing partial differential equations are solved numerically using the Alternate Direct Implicit method together with the Successive Overrelaxation method. The study is focused on studying the flow pattern and the convective and radiative heat transfer rates are studied for different values of radiation parameters, namely, the optical thickness of the fluid, scattering albedo, and the Planck number. It was found that, in the optically thin limit, an increase in the optical thickness of the fluid raises the temperature and radiation heat transfer of the fluid. However, a further increase in the optical thickness decreases the radiative heat transfer rate due to increase in the energy level of the fluid, which ultimately reduces the total heat transfer rate within the fluid.read more
Citations
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Numerical study of the transition to chaos of a buoyant plume from a two-dimensional open cavity heated from below
TL;DR: In this article, the transition from a steady reflection symmetry to a chaotic flow with a sequence of bifurcations was investigated using numerical simulation, and it was shown that the chaotic plume has the possibility to exhibit an alternate appearance of flapping and puffing in the event the Rayleigh number exceeds 8 × 10 4.
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Natural element method study of combined natural convective and radiative heat transfer in irregular-shaped mediums with radiative properties
TL;DR: In this paper, the concept of NEM is implemented for the discretization of mathematical governing equations within computational field, and both P 1 and Discrete Ordinate Method (DOM) are employed to determine the solution of Radiative Transfer Equation through iterative procedure, which ultimately converges to final solutions that are then compared with analytical and numerical studies found in the literature.
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Effects of Entropy Generation, Thermal Radiation and Moving-Wall Direction on Mixed Convective Flow of Nanofluid in an Enclosure
Sivasankaran Sivanandam,Ali J. Chamkha,Fouad O. M. Mallawi,Metib S. Alghamdi,Aisha M. Alqahtani +4 more
TL;DR: In this article, a numeric investigation is executed to understand the impact of moving-wall direction, thermal radiation, entropy generation and nanofluid volume fraction on combined convection and energy transfer of nanoliquids in a differential heated box.
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Some methods of training radial basis neural networks in solving the Navier-Stokes equations
Bakhtgerey Sinchev,Saulet Erbulatovna Sibanbayeva,Axulu Mukhambetkaliyevna Mukhanova,Assel Nurgulzhanovna Nurgulzhanova,Nurgali Zaurbekov,Kairat Sovetovish Imanbayev,Nadezhda Lvovna Gagarina,Lyazzat Kemerbekovna Baibolova +7 more
TL;DR: The purpose of this research is to analyze the application of neural networks and specific features of training radial basis functions for solving 2‐dimensional Navier‐Stokes equations.
References
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Book
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TL;DR: In this paper, a comprehensive discussion of heat transfer by thermal radiation is presented, including the radiative behavior of materials, radiation between surfaces, and gas radiation, and the use of the Monte Carlo technique in solving radiant exchange problems and problems of radiative transfer through absorbing-emitting media.
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Transient combined laminar free convection and radiation in a rectangular enclosure
D. W. Larson,R. Viskanta +1 more
TL;DR: In this paper, the mass, momentum and energy-transfer equations are solved to determine the response of a rectangular enclosure to a fire or other high-temperature heat source, and the effects of nonparticipating radiation, wall heat conduction, and laminar natural convection are examined.
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Unification of the streamline, heatline and massline methods for the visualization of two-dimensional transport phenomena
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