Computation Of Radiative Heat Transfer In Non Gray Participating Media
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Computation Of Radiative Heat Transfer In Non Gray Participating Media
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Author : Girija Parthasarathy
language : en
Publisher:
Release Date : 1996
Computation Of Radiative Heat Transfer In Non Gray Participating Media written by Girija Parthasarathy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Radiative Heat Transfer In Participating Media
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Author : Rahul Yadav
language : en
Publisher: Springer Nature
Release Date : 2022-09-01
Radiative Heat Transfer In Participating Media written by Rahul Yadav and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Science categories.
This book aims at providing a computational framework of radiative heat transfer in participating media. The book mainly helps engineers and researchers develop their own codes for radiative transfer analysis, starting from simple benchmark problems and extending further to industry scale problems. The computations related to radiative heat transfer are very relevant in iron and steel manufacturing industries, rocket exhaust designing, fire resistance testing, and atmospheric and solar applications. The methods to accurately treat the non-gray nature of the participating gases such as H2O, CO2, and CO are discussed along with considering particle radiation. The solver development based on these methods and its application to a variety of industry problems and different kind of geometries is a significant attraction in the book. The last section of the book deals with the use of artificial neural networks and genetic algorithm-based optimization technique for solving practical problems of process parameter optimization in industry. This book is a comprehensive package taking the readers from the basics of radiative heat transfer in participating media to equip them with their own solvers and help to apply to industry problems.
Numerical Modeling Of Radiation Heat Transfer In Absorbing Emitting And Scattering Media
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Author : William Godoy
language : en
Publisher:
Release Date : 2009
Numerical Modeling Of Radiation Heat Transfer In Absorbing Emitting And Scattering Media written by William Godoy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
The objective of this dissertation is the development of numerical models forsimulation of radiative heat transfer for a general 3D Cartesian, non-homogeneous, emitting, absorbing, scattering and non-gray media. The overall problem is dividedin three parts consisting of: i) the acceleration in the calculation of the non-grayradiative properties of the gas and droplets, ii) the solution of the radiative transferequation (RTE) and iii) the coupling of radiation effects with the gas phase and particlesfor time integration solution. For the first part of the study, Mie theory andthe HITEMP database are used to construct the exact radiative properties of theparticle-gas media on a line by line basis. A correlated-k method is devised to representthe gas (H2O and CO2) absorption coefficients in terms of frequency distribution for later coupling with the scattering from the particles (water droplets) on a narrowband basis.^A scaling procedure using the Sauter mean diameter is developed inorder to accelerate the calculation of the radiative properties of the particle distributionresulting in significant computational savings with little loss of accuracy. Next, a classical Discrete Ordinates Method (DOM-SN) with flux limiters or total variation diminishing (TVD) schemes for the angular and spatial discretization is formulated for the solution of the RTE in a 3D absorbing, emitting and scattering enclosure, being the final system of equations solved using a Newton-Krylov method. Inclusion of TVD schemes shows that convergence, accuracy and stability in the RTE solution are superior to classical step (upwind) or diamond (central) schemes. A first solutionfor the interaction of the radiative field with the participating media composed of atwo-phase particle-gas mixture is shown for the evaporation of water sprays due tothe absorption of radiative energy.^The study shows that the evolution of the diametersize distribution due to radiation effects can be modeled through its first twomoments and the introduction of a non-symmetric density function. Overall, results suggest that the proposed numerical approaches for each aspectof the complicated radiative transfer problem may lead to a potential practical solutionin real situations. Through these methods, radiation calculations are madefeasible since accuracy is balanced with the required computational times. The latterencourages the inclusion of radiation effects on practical engineering applicationssuch as, fluid mechanics, combustion processes, 3D atmospheres, among others. Thisinclusion may improve the understanding of the physics behind these applications, including radiation effects, allowing for further development of high fidelity modelingapproaches.
Proceedings Of The National Heat Transfer Conference
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Author :
language : en
Publisher:
Release Date : 1996
Proceedings Of The National Heat Transfer Conference written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Heat categories.
Radiative Heat Transfer
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Author : Michael F. Modest
language : en
Publisher: Academic Press
Release Date : 2021-10-16
Radiative Heat Transfer written by Michael F. Modest and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-16 with Science categories.
Radiative Heat Transfer, Fourth Edition is a fully updated, revised and practical reference on the basic physics and computational tools scientists and researchers use to solve problems in the broad field of radiative heat transfer. This book is acknowledged as the core reference in the field, providing models, methodologies and calculations essential to solving research problems. It is applicable to a variety of industries, including nuclear, solar and combustion energy, aerospace, chemical and materials processing, as well as environmental, biomedical and nanotechnology fields. Contemporary examples and problems surrounding sustainable energy, materials and process engineering are an essential addition to this edition. Includes end-of-chapter problems and a solutions manual, providing a structured and coherent reference Presents many worked examples which have been brought fully up-to-date to reflect the latest research Details many computer codes, ranging from basic problem solving aids to sophisticated research tools
Radiative Heat Transfer
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Author : Michael F. Modest
language : en
Publisher: McGraw-Hill Science, Engineering & Mathematics
Release Date : 1993
Radiative Heat Transfer written by Michael F. Modest and has been published by McGraw-Hill Science, Engineering & Mathematics this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Chaleur - Rayonnement et absorption categories.
Offers a comprehensive treatment of heat transfer. In addition to the standard topics usually covered, it also includes a number of modern state-of-the-art topics including: radiative properties of particles, generation of P-N approximation and collimated irradiation.
An Efficient Computational Method For Thermal Radiation In Participating Media
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Author : Pedram Hassanzadeh
language : en
Publisher:
Release Date : 2007
An Efficient Computational Method For Thermal Radiation In Participating Media written by Pedram Hassanzadeh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Natural Convection Of Air In A Square Cavity
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Author : Graham De Vahl Davis
language : en
Publisher:
Release Date : 1982
Natural Convection Of Air In A Square Cavity written by Graham De Vahl Davis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Heat categories.
The Monte Carlo Ray Trace Method In Radiation Heat Transfer And Applied Optics
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Author : J. Robert Mahan
language : en
Publisher: John Wiley & Sons
Release Date : 2019-02-04
The Monte Carlo Ray Trace Method In Radiation Heat Transfer And Applied Optics written by J. Robert Mahan and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-04 with Science categories.
A groundbreaking guide dedicated exclusively to the MCRT method in radiation heat transfer and applied optics The Monte Carlo Ray-Trace Method in Radiation Heat Transfer and Applied Optics offers the most modern and up-to-date approach to radiation heat transfer modelling and performance evaluation of optical instruments. The Monte Carlo ray-trace (MCRT) method is based on the statistically predictable behavior of entities, called rays, which describe the paths followed by energy bundles as they are emitted, reflected, scattered, refracted, diffracted and ultimately absorbed. The author – a noted expert on the subject – covers a wide variety of topics including the mathematics and statistics of ray tracing, the physics of thermal radiation, basic principles of geometrical and physical optics, radiant heat exchange among surfaces and within participating media, and the statistical evaluation of uncertainty of results obtained using the method. The book is a guide to help formulate and solve models that accurately describe the distribution of radiant energy in thermal and optical systems of practical engineering interest. This important guide: Combines radiation heat transfer and applied optics into a single discipline Covers the MCRT method, which has emerged as the dominant tool for radiation heat transfer modelling Helps readers to formulate and solve models that describe the distribution of radiant energy Features pages of color images and a wealth of line drawings Written for faculty and graduate students in mechanical and aerospace engineering and applied optics professionals, The Monte Carlo Ray-Trace Method in Radiation Heat Transfer and Applied Optics is the first book dedicated exclusively to the MCRT method.
Radiation Heat Transfer In Absorbing Scattering And Emitting Medium
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Author : F. Shahrokhi
language : en
Publisher:
Release Date : 1968
Radiation Heat Transfer In Absorbing Scattering And Emitting Medium written by F. Shahrokhi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Heat categories.
In recent times several articles have been published in which the radiative heat flow is computed between plane parallel, plates with anisotropically scattering atmosphere. An involved analytical treatment employing matrix calculus and a computer program as long and involved as the mathematical analysis was used. Work presented herein indicates that a usable solution to the problem can be obtained by simple iteration of the set of equations which result from approximation of the equation of radiation transfer. The iteration worked perfectly, the computer program is simple and short, and the method can accommodate the same, if not more, parameter variations than the more analytical treatments.