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Author : Philippe Wautelet
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (11 download)
Download or read book CFD Simulation of Combustion and Heat Transfer in a Gas Turbine Combustor written by Philippe Wautelet and published by . This book was released on 1998 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles E. Baukal, Jr.
Publisher : CRC Press
ISBN 13 : 9780849320002
Total Pages : 650 pages
Book Rating : 4.3/5 (2 download)
Download or read book Computational Fluid Dynamics in Industrial Combustion written by Charles E. Baukal, Jr. and published by CRC Press. This book was released on 2000-10-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although many books have been written on computational fluid dynamics (CFD) and many written on combustion, most contain very limited coverage of the combination of CFD and industrial combustion. Furthermore, most of these books are written at an advanced academic level, emphasize theory over practice, and provide little help to engineers who need to use CFD for combustion modeling. Computational Fluid Dynamics in Industrial Combustion fills this gap in the literature. Focusing on topics of interest to the practicing engineer, it codifies the many relevant books, papers, and reports written on this combined subject into a single, coherent reference. It looks at each topic from a somewhat narrow perspective to see how that topic affects modeling in industrial combustion. The editor and his team of expert authors address these topics within three main sections: Modeling Techniques-The basics of CFD modeling in combustion Industrial Applications-Specific applications of CFD in the steel, aluminum, glass, gas turbine, and petrochemical industries Advanced Techniques-Subjects rarely addressed in other texts, including design optimization, simulation, and visualization Rapid increases in computing power and significant advances in commercial CFD codes have led to a tremendous increase in the application of CFD to industrial combustion. Thorough and clearly representing the techniques and issues confronted in industry, Computational Fluid Dynamics in Industrial Combustion will help bring you quickly up to date on current methods and gain the ability to set up and solve the various types of problems you will encounter.
Author : Santanu De
Publisher : Springer
ISBN 13 : 9811074100
Total Pages : 663 pages
Book Rating : 4.8/5 (11 download)
Download or read book Modeling and Simulation of Turbulent Combustion written by Santanu De and published by Springer. This book was released on 2017-12-12 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive review of state-of-the-art models for turbulent combustion, with special emphasis on the theory, development and applications of combustion models in practical combustion systems. It simplifies the complex multi-scale and nonlinear interaction between chemistry and turbulence to allow a broader audience to understand the modeling and numerical simulations of turbulent combustion, which remains at the forefront of research due to its industrial relevance. Further, the book provides a holistic view by covering a diverse range of basic and advanced topics—from the fundamentals of turbulence–chemistry interactions, role of high-performance computing in combustion simulations, and optimization and reduction techniques for chemical kinetics, to state-of-the-art modeling strategies for turbulent premixed and nonpremixed combustion and their applications in engineering contexts.
Author : Johan Christiaan Kotze̹
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (116 download)
Download or read book Complete Engine CFD of a Micro Gas Turbine by Modelling Combustion as a Heat Source written by Johan Christiaan Kotze̹ and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The design challenges of micro gas turbines, compared to large gas turbines, lies in the size of Athe components. Firstly, the small components cannot achieve a high-pressure ratio which cause the mass flow rate to be relatively high for the engine size in order to meet the thrust requirements. This leads to a low combustor residence time and a poor turbine inlet temperature profile. Secondly, the small components make achieving the manufacturing tolerances in the tip gaps difficult which can lead to component mismatches. Complete gas turbine CFD simulations are used to determine component mismatches as a final step before manufacturing an engine by simulating the full flow path of the fluid through the engine. Due to the size and complexity of a gas turbine, the mesh used to model the geometry in CFD packages is large and, consequently, takes a long time to converge. Because time is money, methods to reduce the simulation time are developed and tested. Lower fidelity models than 3D CFD were not considered as they would not be able to provide the required insight into the fluid solution to, if proven to be accurate, determine component mismatches in future projects. The objective of this study was to develop a CFD model using Numeca to simulate the full, main gas flow path of a micro gas turbine. The key limitation was that the chemical process of combustion would not be modelled and the simulation had to run on a single i7 computer with 32 GB of RAM. Furthermore, the accuracy of the developed method had to be assessed. This was achieved, firstly, by determining how well the performance parameters of the simulated engine compared to experimental results and, secondly, the accuracy of the temperature distributions in the combustor. This study modelled combustion as a heat source rather than using complex combustion models built into modern CFD packages which are computationally more expensive. Methods used to simulate gas turbines were found in the open literature, but none of them modelled combustion with a heat source. Two methods for applying the heat source to the combustion domain, namely primary zone heating and global heating were investigated. Primary zone heat addition introduced heat only in the primary combustion zone in the inner combustor annulus. Global heating introduced heat throughout the entire combustor domain from its inlet up to its outlet. The simulated results compare well with experimental results with most variables being within approximately 5% for the BMT 120 KS engine. The mass flow rate results were underpredicted on average by 21%. This should be investigated by, firstly calibrating the bell mouth inlet, limiting the temperature in the combustor and secondly, increasing the distance between the trailing edge of the deswirler and the interface between the domains of the compressor and the combustor. The results produced by the primary zone heat source model were closer to the experimental results than those produced by the global heat source model, but the former took more than Department of Mechanical and Aeronautical Engineering University of Pretoria six times longer to converge. The temperature contours in the combustor were also more realistic when using primary zone heating since this method predicted the location where the inner liner of the combustor was burnt during the experiments. The location of the heating zone was found to be important because the temperature distributions are sensitive to recirculation zones. It can be concluded that the simulation methods of this study can be used to perform performance predictions when changes are made to engine components. Identifying component mismatches can also be investigated with these methods when the mass flow deficit has been addressed.
Author : Marco Chiodi
Publisher : Springer Science & Business Media
ISBN 13 : 3834881317
Total Pages : 275 pages
Book Rating : 4.8/5 (348 download)
Download or read book An Innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines written by Marco Chiodi and published by Springer Science & Business Media. This book was released on 2011-03-07 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the engine development process, simulation and predictive programs have continuously gained in reliance. Due to the complexity of future internal combustion engines the application of simulation programs towards a reliable “virtual engine development” is a need that represents one of the greatest challenges. Marco Chiodi presents an innovative 3D-CFD-tool, exclusively dedicated and optimized for the simulation of internal combustion engines. Thanks to improved or newly developed 3D-CFD-models for the description of engine processes, this tool ensures an efficient and reliable calculation also by using coarse 3D-CFD-meshes. Based on this approach the CPU-time can be reduced up to a factor 100 in comparison to traditional 3D-CFD-simulations. In addition an integrated and automatic “evaluation tool” establishes a comprehensive analysis of the relevant engine parameters. Due to the capability of a reliable “virtual development” of full-engines, this fast response 3D-CFD-tool makes a major contribution to the engine development process. Südwestmetall-Förderpreis 2010
Download or read book Gas Turbine Combustor Modelling for Design written by and published by . This book was released on 1902 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and development of gas turbine combustors is a crucial but uncertain part of an engine development process. Combustion within a gas turbine is a complex interaction of, among other things, fluid dynamics, heat and mass transfer and chemical kinetics. At present, the design process relies upon a wealth of experimental data and correlations. The proper use of this information requires experienced combustion engineers and even for them the design process is very time consuming. Some major engine manufacturers have attempted to address the above problem by developing one dimensional computer programs based on the above test and empirical data to assist combustor designers. Such programs are usually proprietary. The present work, based on this approach has yielded DEPTH, a combustor design program. DEPTH (Design and Evaluation of Pressure, Temperature and Heat transfer in combustors) is developed in Fortran-77 to assist in preliminary design and evaluation of conventional gas turbine combustion chambers. DEPTH can be used to carry out a preliminary design along with prediction of the cooling slots for a given metal temperature limit or to evaluate heat transfer and temperatures for an existing combustion chamber. Analysis of performance parameters such as efficiency, stability and NOx based on stirred reactor theories is also coupled. DEPTH is made sufficiently interactive/user-friendly such that no prior expertise is required as far as computer operation is concerned. The range of variables such as operating conditions, geometry, hardware, fuel type can all be effectively examined and their contribution towards the combustor performance studied. Such comprehensive study should provide ample opportunity for the designer to make the right decisions. It should also be an effective study aid. Returns in terms of higher thermal efficiencies is an incentive to go for combined cycles and cogeneration. In such cases, opting for higher cycle pressures together with a.
Author : Meinhard T. Schobeiri
Publisher : Springer
ISBN 13 : 9783030239725
Total Pages : 0 pages
Book Rating : 4.2/5 (397 download)
Download or read book Gas Turbine Design, Components and System Design Integration written by Meinhard T. Schobeiri and published by Springer. This book was released on 2019-12-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second revised and enhanced edition of the book Gas Turbine Design, Components and System Integration written by a world-renowned expert with more than forty years of active gas turbine R&D experience. It comprehensively treats the design of gas turbine components and their integration into a complete system. Unlike many currently available gas turbine handbooks that provide the reader with an overview without in-depth treatment of the subject, the current book is concentrated on a detailed aero-thermodynamics, design and off-deign performance aspects of individual components as well as the system integration and its dynamic operation. This new book provides practicing gas turbine designers and young engineers working in the industry with design material that the manufacturers would keep proprietary. The book is also intended to provide instructors of turbomachinery courses around the world with a powerful tool to assign gas turbine components as project and individual modules that are integrated into a complete system. Quoting many statements by the gas turbine industry professionals, the young engineers graduated from the turbomachinery courses offered by the author, had the competency of engineers equivalent to three to four years of industrial experience.
Author : Norbert Peters
Publisher : Cambridge University Press
ISBN 13 : 1139428063
Total Pages : 322 pages
Book Rating : 4.1/5 (394 download)
Download or read book Turbulent Combustion written by Norbert Peters and published by Cambridge University Press. This book was released on 2000-08-15 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combustion of fossil fuels remains a key technology for the foreseeable future. It is therefore important that we understand the mechanisms of combustion and, in particular, the role of turbulence within this process. Combustion always takes place within a turbulent flow field for two reasons: turbulence increases the mixing process and enhances combustion, but at the same time combustion releases heat which generates flow instability through buoyancy, thus enhancing the transition to turbulence. The four chapters of this book present a thorough introduction to the field of turbulent combustion. After an overview of modeling approaches, the three remaining chapters consider the three distinct cases of premixed, non-premixed, and partially premixed combustion, respectively. This book will be of value to researchers and students of engineering and applied mathematics by demonstrating the current theories of turbulent combustion within a unified presentation of the field.
Author : Guan Heng Yeoh
Publisher : Butterworth-Heinemann
ISBN 13 : 0080570038
Total Pages : 545 pages
Book Rating : 4.0/5 (85 download)
Download or read book Computational Fluid Dynamics in Fire Engineering written by Guan Heng Yeoh and published by Butterworth-Heinemann. This book was released on 2009-04-20 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire and combustion presents a significant engineering challenge to mechanical, civil and dedicated fire engineers, as well as specialists in the process and chemical, safety, buildings and structural fields. We are reminded of the tragic outcomes of ‘untenable’ fire disasters such as at King’s Cross underground station or Switzerland’s St Gotthard tunnel. In these and many other cases, computational fluid dynamics (CFD) is at the forefront of active research into unravelling the probable causes of fires and helping to design structures and systems to ensure that they are less likely in the future. Computational fluid dynamics (CFD) is routinely used as an analysis tool in fire and combustion engineering as it possesses the ability to handle the complex geometries and characteristics of combustion and fire. This book shows engineering students and professionals how to understand and use this powerful tool in the study of combustion processes, and in the engineering of safer or more fire resistant (or conversely, more fire-efficient) structures. No other book is dedicated to computer-based fire dynamics tools and systems. It is supported by a rigorous pedagogy, including worked examples to illustrate the capabilities of different models, an introduction to the essential aspects of fire physics, examination and self-test exercises, fully worked solutions and a suite of accompanying software for use in industry standard modeling systems. Computational Fluid Dynamics (CFD) is widely used in engineering analysis; this is the only book dedicated to CFD modeling analysis in fire and combustion engineering Strong pedagogic features mean this book can be used as a text for graduate level mechanical, civil, structural and fire engineering courses, while its coverage of the latest techniques and industry standard software make it an important reference for researchers and professional engineers in the mechanical and structural sectors, and by fire engineers, safety consultants and regulators Strong author team (CUHK is a recognized centre of excellence in fire eng) deliver an expert package for students and professionals, showing both theory and applications. Accompanied by CFD modeling code and ready to use simulations to run in industry-standard ANSYS-CFX and Fluent software
Author : Julian Toumey
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Development of a Large Eddy Simulation Solver with Conjugate Convective and Radiative Heat Transfer written by Julian Toumey and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In aeronautical gas turbine engines, increasing the combustor firing temperature offers improved performance by increasing the thermodynamic cycle efficiency. A natural impediment to this improvement is the susceptibility of combustor and turbine hardware to damage from the increased combustion temperature. By performing high-fidelity computational fluid dynamics (CFD) simulations and validating them with experimental measurements, engineers can gain insight into the near-wall convective and radiative heat transfer at the combustor liner for a better understanding of the fundamental physical processes affecting hardware durability. This work develops a computational modeling platform to quantify the relative contributions of convective and radiative heat transfer to the combustor liner. The modeling platform builds on a wall-resolved large eddy simulation (LES) solver to compute near-wall convective heat transfer. A solid conduction solver is coupled with the LES solver to account for the solid thermal response and any feedback from the solid to the gas field. A library of radiative transfer equation (RTE) solvers and spectral models is also coupled to the conjugate heat transfer LES solver to consider thermal radiation. Several simulation test cases are designed and employed for verification and validation of the convection-conduction solver. Two loose-coupling approaches are implemented to de-synchronize the fluid and solid phases in time, reducing the wall clock time to reach thermal equilibrium. Initial isothermal simulations of a backward-facing step combustor provide insight into the dependence of mid-plane statistics on spanwise wall effects and aid in the design of experiments for the subsequent investigation. Finally, the convection-radiation-conduction solver is employed to examine the relative contributions of radiation and convection to wall heat transfer. The developments provide a computational platform for future high-fidelity convection-radiation-conduction coupled simulations and further understanding of the near-wall thermal behavior in combustion devices.
Author : Tarek Echekki
Publisher : Springer Science & Business Media
ISBN 13 : 9400704127
Total Pages : 496 pages
Book Rating : 4.4/5 (7 download)
Download or read book Turbulent Combustion Modeling written by Tarek Echekki and published by Springer Science & Business Media. This book was released on 2010-12-25 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent combustion sits at the interface of two important nonlinear, multiscale phenomena: chemistry and turbulence. Its study is extremely timely in view of the need to develop new combustion technologies in order to address challenges associated with climate change, energy source uncertainty, and air pollution. Despite the fact that modeling of turbulent combustion is a subject that has been researched for a number of years, its complexity implies that key issues are still eluding, and a theoretical description that is accurate enough to make turbulent combustion models rigorous and quantitative for industrial use is still lacking. In this book, prominent experts review most of the available approaches in modeling turbulent combustion, with particular focus on the exploding increase in computational resources that has allowed the simulation of increasingly detailed phenomena. The relevant algorithms are presented, the theoretical methods are explained, and various application examples are given. The book is intended for a relatively broad audience, including seasoned researchers and graduate students in engineering, applied mathematics and computational science, engine designers and computational fluid dynamics (CFD) practitioners, scientists at funding agencies, and anyone wishing to understand the state-of-the-art and the future directions of this scientifically challenging and practically important field.
Author : Johannes Janicka
Publisher : Springer Science & Business Media
ISBN 13 : 9400753209
Total Pages : 495 pages
Book Rating : 4.4/5 (7 download)
Download or read book Flow and Combustion in Advanced Gas Turbine Combustors written by Johannes Janicka and published by Springer Science & Business Media. This book was released on 2012-10-29 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: With regard to both the environmental sustainability and operating efficiency demands, modern combustion research has to face two main objectives, the optimization of combustion efficiency and the reduction of pollutants. This book reports on the combustion research activities carried out within the Collaborative Research Center (SFB) 568 “Flow and Combustion in Future Gas Turbine Combustion Chambers” funded by the German Research Foundation (DFG). This aimed at designing a completely integrated modeling and numerical simulation of the occurring very complex, coupled and interacting physico-chemical processes, such as turbulent heat and mass transport, single or multi-phase flows phenomena, chemical reactions/combustion and radiation, able to support the development of advanced gas turbine chamber concepts
Author : Meherwan P. Boyce
Publisher : Elsevier
ISBN 13 : 0080456898
Total Pages : 956 pages
Book Rating : 4.0/5 (84 download)
Download or read book Gas Turbine Engineering Handbook written by Meherwan P. Boyce and published by Elsevier. This book was released on 2017-09-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gas Turbine Engineering Handbook has been the standard for engineers involved in the design, selection, and operation of gas turbines. This revision includes new case histories, the latest techniques, and new designs to comply with recently passed legislation. By keeping the book up to date with new, emerging topics, Boyce ensures that this book will remain the standard and most widely used book in this field. The new Third Edition of the Gas Turbine Engineering Hand Book updates the book to cover the new generation of Advanced gas Turbines. It examines the benefit and some of the major problems that have been encountered by these new turbines. The book keeps abreast of the environmental changes and the industries answer to these new regulations. A new chapter on case histories has been added to enable the engineer in the field to keep abreast of problems that are being encountered and the solutions that have resulted in solving them. Comprehensive treatment of Gas Turbines from Design to Operation and Maintenance. In depth treatment of Compressors with emphasis on surge, rotating stall, and choke; Combustors with emphasis on Dry Low NOx Combustors; and Turbines with emphasis on Metallurgy and new cooling schemes. An excellent introductory book for the student and field engineers A special maintenance section dealing with the advanced gas turbines, and special diagnostic charts have been provided that will enable the reader to troubleshoot problems he encounters in the field The third edition consists of many Case Histories of Gas Turbine problems. This should enable the field engineer to avoid some of these same generic problems
Author : C. Presser
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (91 download)
Download or read book Combustion, Fire, and Computational Modeling of Industrial Combustion Systems written by C. Presser and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 14 papers in this volume were presented during the November 2000 conference, and primarily discuss developments in combustion modeling of flows associated with industrial reactors. Computation investigations address modeling issues (appropriate numerical schemes, convergence and grid resolution)
Author :
Publisher :
ISBN 13 :
Total Pages : 644 pages
Book Rating : 4.:/5 (318 download)
Download or read book Journal of Engineering for Gas Turbines and Power written by and published by . This book was released on 2007 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : Norman Rhodes
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.F/5 ( download)
Download or read book Computational Fluid Dynamics in Practice written by Norman Rhodes and published by John Wiley & Sons. This book was released on 2001-08-22 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from a recent seminar discuss challenging applications in computational fluid dynamics (CFD) and identify techniques which are likely to occur in the next generation of codes. Specific topics include numerical accuracy in CFD, comparison of a conventional RANS and a lattice gas dynamics simulation, the validation of rapid CFD modeling for turbomachinery, and numerical determination of windage losses on high-speed rotating discs. Other subjects include using CFD to investigate combustion in a cement manufacturing process, validation of the coal combustion capability in the star-CD code, blast wave simulation, and built environments using CFD. Rhodes is chairman of the Institution of Mechanical Engineers' Energy Transfer and Thermofluid Mechanics Group. Distributed by ASME. c. Book News Inc.
