Author: Min Seok Ko
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This dissertation presents a numerical simulation of three-dimensional flow and heat transfer in a channel with a backward-facing step. Flow was considered to be steady, incompressible, and laminar. The flow medium was treated to be radiatively participating. Governing momentum equations, energy equation, and the radiative equation were solved by a finite volume method. Extensive validation studies were carried out. As part of the validation study, three-dimensional combined convection and radiation in a rectangular channel without a backward-facing step was studied. The SIMPLE algorithm was used to link pressure and velocity fields. The combined convective-radiative heat transfer were studied by varying three parameters, i.e. optical thickness ([tau][eta]=0.1, 0.2, and 0.4) and scattering albedo ([omega]=0, 0.25, 0.5, 0.75 and 1). Variation of thermophysical properties with temperature was considered in this study. In this work consideration was given only to cooling. Effects of those radiative parameters on velocity, bulk temperature, and Nusselt number are presented in detail. The fluid with a hot inlet compared to a cold wall was cooled in a relatively short distance from the channel inlet because of the radiation effect. The thermal penetration decreased with a decrease in optical thickness and an increase in scattering albedo. Thermal penetration increased with increasing optical thickness and decreasing scattering albedo. The reattachment length varied with temperature due to variation of thermophysical properties with temperature.
Numerical Simulation of Three-dimensional Combined Convective Radiative Heat Transfer in Rectangular Channels
Author: Min Seok Ko
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This dissertation presents a numerical simulation of three-dimensional flow and heat transfer in a channel with a backward-facing step. Flow was considered to be steady, incompressible, and laminar. The flow medium was treated to be radiatively participating. Governing momentum equations, energy equation, and the radiative equation were solved by a finite volume method. Extensive validation studies were carried out. As part of the validation study, three-dimensional combined convection and radiation in a rectangular channel without a backward-facing step was studied. The SIMPLE algorithm was used to link pressure and velocity fields. The combined convective-radiative heat transfer were studied by varying three parameters, i.e. optical thickness ([tau][eta]=0.1, 0.2, and 0.4) and scattering albedo ([omega]=0, 0.25, 0.5, 0.75 and 1). Variation of thermophysical properties with temperature was considered in this study. In this work consideration was given only to cooling. Effects of those radiative parameters on velocity, bulk temperature, and Nusselt number are presented in detail. The fluid with a hot inlet compared to a cold wall was cooled in a relatively short distance from the channel inlet because of the radiation effect. The thermal penetration decreased with a decrease in optical thickness and an increase in scattering albedo. Thermal penetration increased with increasing optical thickness and decreasing scattering albedo. The reattachment length varied with temperature due to variation of thermophysical properties with temperature.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This dissertation presents a numerical simulation of three-dimensional flow and heat transfer in a channel with a backward-facing step. Flow was considered to be steady, incompressible, and laminar. The flow medium was treated to be radiatively participating. Governing momentum equations, energy equation, and the radiative equation were solved by a finite volume method. Extensive validation studies were carried out. As part of the validation study, three-dimensional combined convection and radiation in a rectangular channel without a backward-facing step was studied. The SIMPLE algorithm was used to link pressure and velocity fields. The combined convective-radiative heat transfer were studied by varying three parameters, i.e. optical thickness ([tau][eta]=0.1, 0.2, and 0.4) and scattering albedo ([omega]=0, 0.25, 0.5, 0.75 and 1). Variation of thermophysical properties with temperature was considered in this study. In this work consideration was given only to cooling. Effects of those radiative parameters on velocity, bulk temperature, and Nusselt number are presented in detail. The fluid with a hot inlet compared to a cold wall was cooled in a relatively short distance from the channel inlet because of the radiation effect. The thermal penetration decreased with a decrease in optical thickness and an increase in scattering albedo. Thermal penetration increased with increasing optical thickness and decreasing scattering albedo. The reattachment length varied with temperature due to variation of thermophysical properties with temperature.
Numerical Simulation of Convective-Radiative Heat Transfer
Author: Mikhail Sheremet
Publisher:
ISBN: 9783039431946
Category :
Languages : en
Pages : 244
Book Description
This book presents numerical, experimental, and analytical analysis of convective and radiative heat transfer in various engineering and natural systems, including transport phenomena in heat exchangers and furnaces, cooling of electronic heat-generating elements, and thin-film flows in various technical systems. It is well known that such heat transfer mechanisms are dominant in the systems under consideration. Therefore, in-depth study of these regimes is vital for both the growth of industry and the preservation of natural resources. The authors included in this book present insightful and provocative studies on convective and radiative heat transfer using modern analytical techniques. This book will be very useful for academics, engineers, and advanced students.
Publisher:
ISBN: 9783039431946
Category :
Languages : en
Pages : 244
Book Description
This book presents numerical, experimental, and analytical analysis of convective and radiative heat transfer in various engineering and natural systems, including transport phenomena in heat exchangers and furnaces, cooling of electronic heat-generating elements, and thin-film flows in various technical systems. It is well known that such heat transfer mechanisms are dominant in the systems under consideration. Therefore, in-depth study of these regimes is vital for both the growth of industry and the preservation of natural resources. The authors included in this book present insightful and provocative studies on convective and radiative heat transfer using modern analytical techniques. This book will be very useful for academics, engineers, and advanced students.
Numerical Simulation of Three-dimensional Conjugate Heat Transfer from Discrete Heat Sources
Author: Kevin Chung-Wai Yeung
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
Book Description
Radiative Heat Transfer
Author: Michael F. Modest
Publisher: Academic Press
ISBN: 0123869900
Category : Science
Languages : en
Pages : 905
Book Description
The third edition of Radiative Heat Transfer describes the basic physics of radiation heat transfer. The book provides models, methodologies, and calculations essential in solving research problems in a variety of industries, including solar and nuclear energy, nanotechnology, biomedical, and environmental. Every chapter of Radiative Heat Transfer offers uncluttered nomenclature, numerous worked examples, and a large number of problems—many based on real world situations—making it ideal for classroom use as well as for self-study. The book's 24 chapters cover the four major areas in the field: surface properties; surface transport; properties of participating media; and transfer through participating media. Within each chapter, all analytical methods are developed in substantial detail, and a number of examples show how the developed relations may be applied to practical problems. - Extensive solution manual for adopting instructors - Most complete text in the field of radiative heat transfer - Many worked examples and end-of-chapter problems - Large number of computer codes (in Fortran and C++), ranging from basic problem solving aids to sophisticated research tools - Covers experimental methods
Publisher: Academic Press
ISBN: 0123869900
Category : Science
Languages : en
Pages : 905
Book Description
The third edition of Radiative Heat Transfer describes the basic physics of radiation heat transfer. The book provides models, methodologies, and calculations essential in solving research problems in a variety of industries, including solar and nuclear energy, nanotechnology, biomedical, and environmental. Every chapter of Radiative Heat Transfer offers uncluttered nomenclature, numerous worked examples, and a large number of problems—many based on real world situations—making it ideal for classroom use as well as for self-study. The book's 24 chapters cover the four major areas in the field: surface properties; surface transport; properties of participating media; and transfer through participating media. Within each chapter, all analytical methods are developed in substantial detail, and a number of examples show how the developed relations may be applied to practical problems. - Extensive solution manual for adopting instructors - Most complete text in the field of radiative heat transfer - Many worked examples and end-of-chapter problems - Large number of computer codes (in Fortran and C++), ranging from basic problem solving aids to sophisticated research tools - Covers experimental methods
A Numerical Model of Convective Heat Transfer in a Three Dimensional Channel with Baffles
Author: Jorge Ricardo Lopez Buso
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Book Description
Applied mechanics reviews
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 400
Book Description
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 400
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Advanced Computational Methods in Heat Transfer
Author: Luiz C. Wrobel
Publisher:
ISBN: 9781853120855
Category : Mathematics
Languages : en
Pages : 452
Book Description
Publisher:
ISBN: 9781853120855
Category : Mathematics
Languages : en
Pages : 452
Book Description
Direct Numerical Simulations of Three-dimensional Flow and Augmented Heat Transfer in a Symmetrically Grooved Channel with Constant Temperature Walls
Author: Robert J. Faulkner
Publisher:
ISBN:
Category : Heat exchangers
Languages : en
Pages : 216
Book Description
Publisher:
ISBN:
Category : Heat exchangers
Languages : en
Pages : 216
Book Description
Applications of Semi-Analytical Methods for Nanofluid Flow and Heat Transfer
Author: Mohsen Sheikholeslami
Publisher: Elsevier
ISBN: 0128136766
Category : Science
Languages : en
Pages : 882
Book Description
Application of Semi-Analytical Methods for Nanofluid Flow and Heat Transfer applies semi-analytical methods to solve a range of engineering problems. After various methods are introduced, their application in nanofluid flow and heat transfer, magnetohydrodynamic flow, electrohydrodynamic flow and heat transfer, and nanofluid flow in porous media within several examples are explored. This is a valuable reference resource for materials scientists and engineers that will help familiarize them with a wide range of semi-analytical methods and how they are used in nanofluid flow and heat transfer. The book also includes case studies to illustrate how these methods are used in practice. - Presents detailed information, giving readers a complete familiarity with governing equations where nanofluid is used as working fluid - Provides the fundamentals of new analytical methods, applying them to applications of nanofluid flow and heat transfer in the presence of magnetic and electric field - Gives a detailed overview of nanofluid motion in porous media
Publisher: Elsevier
ISBN: 0128136766
Category : Science
Languages : en
Pages : 882
Book Description
Application of Semi-Analytical Methods for Nanofluid Flow and Heat Transfer applies semi-analytical methods to solve a range of engineering problems. After various methods are introduced, their application in nanofluid flow and heat transfer, magnetohydrodynamic flow, electrohydrodynamic flow and heat transfer, and nanofluid flow in porous media within several examples are explored. This is a valuable reference resource for materials scientists and engineers that will help familiarize them with a wide range of semi-analytical methods and how they are used in nanofluid flow and heat transfer. The book also includes case studies to illustrate how these methods are used in practice. - Presents detailed information, giving readers a complete familiarity with governing equations where nanofluid is used as working fluid - Provides the fundamentals of new analytical methods, applying them to applications of nanofluid flow and heat transfer in the presence of magnetic and electric field - Gives a detailed overview of nanofluid motion in porous media