Role of various moving walls on entropy generation during mixed convection within entrapped porous triangular cavities
09 Mar 2017-Numerical Heat Transfer Part A-applications (Taylor & Francis)-Vol. 71, Iss: 4, pp 423-447
TL;DR: In this article, the authors analyzed the effect of the motion of horizontal walls on the entropy generation and heat transfer rates in an entrapped triangular porous cavity during mix-mix.
Abstract: The aim of the present investigation is to analyze the effect of the motion of horizontal walls on the entropy generation and heat transfer rates in an entrapped triangular porous cavity during mix...
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01 Jan 1997
TL;DR: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems and discusses the main points in the application to electromagnetic design, including formulation and implementation.
Abstract: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems. Although we discuss the main points in the application of the finite element method to electromagnetic design, including formulation and implementation, those who seek deeper understanding of the finite element method should consult some of the works listed in the bibliography section.
1,820 citations
01 Jan 2011
TL;DR: In this paper, the authors developed a design of experiment to carry out a numerical analysis of heat transfer in a rectangular enclosure filled with a saturated porous medium, and the optimum heat transfer rate was obtained for various configuration-related parameters.
Abstract: Understanding heat transfer through saturated porous media is of great importance to many engineering and geophysical systems such as cooling the electronic devices and solar power collectors, and post-accidental heat removal in nuclear reactors. Large numbers of research studies have been and are conducted on the expanding field of porous media due to the high rate of heat transfer in these systems. Despite the efforts made towards the study of the mechanics of fluid flow through porous media, little is studied the rate of exergy which is the only factor presenting the rate of reusable energy potentially produced by a heat generating body. The objective of this study is to develop a design of experiment to carry out a numerical analysis of heat transfer in a rectangular enclosure filled with a saturated porous medium. The optimum heat transfer rate will be obtained for various configuration-related parameters, namely different inlet to outlet ratios and different inlet width to cavity width ratios. These parameters will be optimized to achieve maximum rate of heat transfer and minimum rate of entropy generation. The results of this study will also help to determine relationships for predicting the heat transfer characteristics of the enclosure.Copyright © 2011 by ASME
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References
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01 Jan 1997
TL;DR: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems and discusses the main points in the application to electromagnetic design, including formulation and implementation.
Abstract: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems. Although we discuss the main points in the application of the finite element method to electromagnetic design, including formulation and implementation, those who seek deeper understanding of the finite element method should consult some of the works listed in the bibliography section.
1,820 citations
"Role of various moving walls on ent..." refers methods in this paper
...(6) and (7)] are solved by using Galerkin finite element method [36] as discussed in the earlier work [37]....
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...(2)–(4)] are solved using Galerkin finite element method [36]....
[...]
TL;DR: In this article, the effects of a solid boundary and the inertial forces on flow and heat transfer in porous media were analyzed, and a new concept of the momentum boundary layer central to the numerical routine was presented.
1,427 citations
"Role of various moving walls on ent..." refers methods in this paper
...The momentum transport in the porous medium is modeled based on the Darcy–Brinkman–Forchheimer model following the earlier works [32, 33]....
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350 citations
"Role of various moving walls on ent..." refers background in this paper
...According to the local thermodynamic equilibrium of the linear transport theory [39], the dimensionless total local entropy generation for a two-dimensional heat and fluid flow in Cartesian coordinates in the explicit form is written as...
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TL;DR: In this paper, a numerical study to investigate the steady laminar natural convection flow in a square cavity with uniformly and non-uniformly heated bottom wall, and adiabatic top wall maintaining constant temperature of cold vertical walls has been performed.
297 citations
"Role of various moving walls on ent..." refers methods in this paper
...(6) and (7)] are solved by using Galerkin finite element method [36] as discussed in the earlier work [37]....
[...]
...Equation (12) is solved using the finite element method as discussed in earlier work [37]....
[...]
TL;DR: In this article, the steady natural convection in an enclosure heated from below and symmetrically cooled from the sides is studied numerically, using a stream function-vorticity formulation.
237 citations