Conjugate mixed convection with surface radiation from a horizontal channel with protruding heat sources
01 Sep 2006-International Journal of Heat and Mass Transfer (Pergamon)-Vol. 49, Iss: 19, pp 3568-3582
TL;DR: In this article, a numerical investigation of conjugate convection with surface radiation from horizontal channels with protruding heat sources has been carried out, where the flow is assumed to be steady, laminar, incompressible, hydrodynamically and thermally developing.
About: This article is published in International Journal of Heat and Mass Transfer.The article was published on 2006-09-01. It has received 79 citations till now. The article focuses on the topics: Combined forced and natural convection & Heat transfer.
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TL;DR: In this paper, the authors used a short triangular conductive fin to simulate the flow and temperature fields in a lid-driven square cavity and found that the fin is a good control parameter for heat transfer, temperature distribution and flow field.
82 citations
TL;DR: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published between 2000 and 2009 has been conducted by as mentioned in this paper, where the authors conducted a comprehensive survey.
Abstract: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published between 2000 and 2009 has been conducted Due to the immenseness of the literature volume, the survey
58 citations
TL;DR: In this paper, the authors presented the laminar mixed convection air-cooling of two identical heat sources, simulating electronic components, mounted in an inclined channel, and used the SIMPLER algorithm to solve the conservation equations of mass, momentum, and energy.
54 citations
TL;DR: In this paper, the effect of parameters such as the Grashof number, the transient factor, the optical thickness and the solid wall thermal conductivity both on the local thermo-hydrodynamic characteristics such as streamlines and temperature fields and on the integral parameter like the average Nusselt number on the heat source surface has been analyzed.
51 citations
TL;DR: In this article, the effect of variable magnetic field on the mixed convective flow of a ferrofluid within a lid-driven cavity has been analyzed numerically, and it has been found that the growth of the magnetic number leads to the heat transfer enhancement.
Abstract: The effect of variable magnetic field on the mixed convective flow of a ferrofluid within a lid-driven cavity has been analyzed numerically. A heat-conducting solid block is located in the bottom part of the cavity. Governing partial differential equations have been formulated taking into account that the magnetic source is a point source located over the moving lid. Analysis has been performed for a wide range of Hartmann number, nanoparticles volume fraction, and magnetic number. It has been found that the growth of the magnetic number leads to the heat transfer enhancement.
50 citations
Cites methods from "Conjugate mixed convection with sur..."
...Premachandran and Balaji [9] studied numerically the conjugate convection with surface radiation from horizontal channels with protruding heat sources and they developed a correlation for the non-dimensional maximum temperature using the method of asymptotic expansions....
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References
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Book•
01 Jan 1980
TL;DR: In this article, the authors focus on heat and mass transfer, fluid flow, chemical reaction, and other related processes that occur in engineering equipment, the natural environment, and living organisms.
Abstract: This book focuses on heat and mass transfer, fluid flow, chemical reaction, and other related processes that occur in engineering equipment, the natural environment, and living organisms. Using simple algebra and elementary calculus, the author develops numerical methods for predicting these processes mainly based on physical considerations. Through this approach, readers will develop a deeper understanding of the underlying physical aspects of heat transfer and fluid flow as well as improve their ability to analyze and interpret computed results.
21,858 citations
Book•
01 Jan 1993
TL;DR: In this article, the Monte Carlo method for thermal radiation was used to estimate the radiative properties of one-dimensional Gray Media, and the method of Spherical Harmonics (PN-Approximation) was used for the same purpose.
Abstract: 1. Fundamentals of Thermal Radiation 2. Radiative Property Predictions from Electromagnetic Wave Theory 3. Radiative Properties of Real Surfaces 4. View Factors 5. Radiative Exchange Between Gray, Diffuse Surfaces 6. Radiative Exchange Between Partially-Specular Gray Surfaces 7. Radiative Exchange Between Nonideal Surfaces 8. Surface Radiative Exchange in the Presence of Conduction and Convection 9. The Equation of Radiative Transfer in Participating Media 10. Radiative Properties of Molecular Gases 11. Radiative Properties of Particulate Media 12. Radiative Properties of Semitransparent Media 13. Exact Solutions for One-Dimensional Gray Media 14. Approximate Solution Methods for One-Dimensional Media 15. The Method of Spherical Harmonics (PN-Approximation) 16. The Method of Discrete Ordinates (SN-Approximation) 17. The Zonal Method 18. The Treatment of Collimated Irradiation 19. The Treatment of Nongray Extinction Coefficients 20. The Monte Carlo Method for Thermal Radiation 21. Radiation Combined with Conduction and Convection 22. Inverse Radiative Heat Transfer A. Constants and Conversion Factors B. Tables for Radiative Properties of Opaque Surfaces C. Blackbody Emissive Power Table D. View Factor Catalogue E. Exponential Integral Functions F. Computer Codes Author Index Subject Index
4,907 citations
TL;DR: In this paper, a control-volume-based finite difference procedure with appropriate averaging for the diffusion coefficients is used to solve the coupling between the solid and fluid regions, and the analysis is extended to study the optimum spacing between heat sources for a fixed heat input and a desired maximum temperature at the heat source.
Abstract: Conjugate heat transfer for two-dimensional, developing flow over an array of rectangular blocks, representing finite heat sources on parallel plates, is considered. Incompressible flow over multiple blocks is modeled using the fully elliptic form of the Navier-Stokes equations. A control-volume-based finite difference procedure with appropriate averaging for the diffusion coefficients is used to solve the coupling between the solid and fluid regions. The heat transfer characteristics resulting from recirculating zones around the blocks are presented. The analysis is extended to study the optimum spacing between heat sources for a fixed heat input and a desired maximum temperature at the heat source.
216 citations
TL;DR: In this paper, a numerical investigation of free convection in a rectangular enclosure has been carried out based on Gosman's finite volume method with a 21 × 21 non-uniform grid, and a radiation model has been included in the analysis to study the effect of surface radiation on the heat transfer characteristics of the enclosure.
158 citations
TL;DR: In this article, the effect of conduction in the wall on the natural convection flow in a square enclosure has been analyzed numerically, and three separate models to account for the wall conduction are investigated: (i) the complete conjugate case in which conduction was assumed to be fully two-dimensional, (ii) a one-dimensional model in which the wall convection in the horizontal direction only, and (iii) a lumped parameter approach which assumed the solid-fluid interface temperature to be uniform.
138 citations