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Author : A. Laverdant
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (641 download)
Download or read book A Numerical Analysis of a Diffusion Flame-Vortex Interaction written by A. Laverdant and published by . This book was released on 1987 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hitesh Patadia
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (342 download)
Download or read book Flame-vortex Interactions in Methane-air and Methanol-air Jet Diffusion Flames written by Hitesh Patadia and published by . This book was released on 1995 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shin-Juh Chen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Results from Numerical Simulations of the Diffusion Flame-vortex Ring Interaction written by Shin-Juh Chen and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shin-Juh Chen
Publisher :
ISBN 13 :
Total Pages : 382 pages
Book Rating : 4.3/5 (91 download)
Download or read book Experimental and Computational Study of Fluid Dynamics-combustion Coupling in a Diffusion Flame-vortex Ring Interaction written by Shin-Juh Chen and published by . This book was released on 2000 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michele G. Macaraeg
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)
Download or read book Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow written by Michele G. Macaraeg and published by . This book was released on 1994 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Norbert Peters
Publisher : Springer-Verlag
ISBN 13 : 3663140067
Total Pages : 211 pages
Book Rating : 4.6/5 (631 download)
Download or read book Numerical Methods in Laminar Flame Propagation written by Norbert Peters and published by Springer-Verlag. This book was released on 2013-11-21 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thierry Baritaud
Publisher : Editions TECHNIP
ISBN 13 : 9782710806981
Total Pages : 328 pages
Book Rating : 4.8/5 (69 download)
Download or read book Direct Numerical Simulation for Turbulent Reacting Flows written by Thierry Baritaud and published by Editions TECHNIP. This book was released on 1996 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Description of accurate boundary conditions for the simulation of reactive flows. Parallel direct numerical simulation of turbulent reactive flow. Flame-wall interaction and heat flux modelling in turbulent channel flow. A numerical study of laminar flame wall interaction with detailed chemistry: wall temperature effects. Modeling and simulation of turbulent flame kernel evolution. Experimental and theoretical analysis of flame surface density modelling for premixed turbulent combustion. Gradient and counter-gradient transport in turbulent premixed flames. Direct numerical simulation of turbulent flames with complex chemical kinetics. Effects of curvature and unsteadiness in diffusion flames. Implications for turbulent diffusion combustion. Numerical simulations of autoignition in turbulent mixing flows. Stabilization processes of diffusion flames. References.
Author : Alejandro Sanchez (Jr.)
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (15 download)
Download or read book Numerical Analysis on a Diffusion Flame Model with Radiative Heat Loss written by Alejandro Sanchez (Jr.) and published by . This book was released on 2017 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Two combustion systems that are extensively studied for chemical reaction processes are premixed flames and non-premixed flames. A premixed flame has oxidizer mixed with fuel causing flame front to be a thin reaction sheet (flame) that moves from burnt side to reactant side. Plenty of theoretical and physical experiments have already been contributed into modeling and characterizing premixed flames. Only as of late, has the theoretical and physical experiments towards non-premixed flames, been identified in the literature. This research focuses on non-premixed flames, diffusion flames. A diffusion flame is where oxidizer and fuel are initially separated and come together via some external forces at a reaction sheet. As a flame cools down, or slows down, the flame gets closer to extinction. Before extinction the flame will become unstable and may oscillate or show cellular instabilities. This model will focus on diffusion flames in a closed chamber with fuel being supplied in the flow and oxidizer diffusing against the gradient. The model allows for convection and radiative heat loss, which represents the heat transfer of a hot object to its cooler surroundings. Appropriate boundary conditions are implemented for the three differential equations that include temperature, oxidizer, and fuel. The system of equations are coupled, and each has a nonlinear reaction term. The bvp4c function in MATLAB is used to numerically solve these differential equations, with their boundary conditions, to identify flame location and flame extinctions for diffusion flames. Flame extinction occurs at a particular Damköhler number D, representing the ratio of diffusion time to chemical reaction time. Results from the numerical analysis are compared to numerical results of other models that are similar to this model."--
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722289911
Total Pages : 38 pages
Book Rating : 4.2/5 (899 download)
Download or read book Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of streamwise-spanwise vorticity interactions that occur in turbulent shear flows on flame/vortex interactions is examined by means of asymptotic analysis and numerical simulation in the limit of small Mach number. An idealized model is employed to describe the interaction process. The model consists of a one-step, irreversible Arrhenius reaction between initially unmixed species occupying adjacent half-planes which are then allowed to mix and react in the presence of a streamwise vortex embedded in a shear flow. It is found that the interaction of the streamwise vortex with shear gives rise to small-scale velocity oscillations which increase in magnitude with shear strength. These oscillations give rise to regions of strong temperature gradients via viscous heating, which can lead to multiple ignition points and substantially decrease ignition times. The evolution in time of the temperature and mass-fraction fields is followed, and emphasis is placed on the ignition time and structure as a function of vortex and shear strength. Macaraeg, Michele G. and Jackson, T. L. and Hussaini, M. Y. Langley Research Center NAS1-19480; RTOP 505-90-52-01...
Author : Thierry Poinsot
Publisher : R.T. Edwards, Inc.
ISBN 13 : 9781930217102
Total Pages : 544 pages
Book Rating : 4.2/5 (171 download)
Download or read book Theoretical and Numerical Combustion written by Thierry Poinsot and published by R.T. Edwards, Inc.. This book was released on 2005 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing numerical techniques for combustion, this textbook describes both laminar and turbulent flames, addresses the problem of flame-wall interaction, and presents a series of theoretical tools used to study the coupling phenomena between combustion and acoustics. The second edition incorporates recent advances in unsteady simulation methods,
Author : K. Y. Hsu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Experimental and Numerical Investigations of the Vortex-flame Interactions in a Driven Jet Diffusion Flame written by K. Y. Hsu and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jun Zhao
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (287 download)
Download or read book Numerical Analysis of Hydrogen-air Counter Flow Diffusion Flame written by Jun Zhao and published by . This book was released on 1993 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Akshai K. Runchal
Publisher : Springer
ISBN 13 : 9811074739
Total Pages : 499 pages
Book Rating : 4.8/5 (11 download)
Download or read book Energy for Propulsion written by Akshai K. Runchal and published by Springer. This book was released on 2018-07-06 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research book provides state-of-the-art advances in several areas of energy generation from, and environmental impact of, fuels and biofuels. It also presents novel developments in the areas of biofuels and products from various feedstock materials along with thermal management, emission control and environmental issues. Availability of clean and sustainable energy is of paramount importance in all applications of energy, power, mobility and propulsion. This book is written by internationally renowned experts from around the globe. They provide the latest innovations in cleaner energy utilization for a wide range of devices. The energy and environment sustainability requires a multipronged approach involving development and utilization of new and renewable fuels, design of fuel-flexible combustion systems and novel and environmentally friendly technologies for improved fuel use. This book serves as a good reference for practicing engineers, educators and research professionals.
Author : H. C. Soong
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book A Numerical Study of Turbulence-combustion Interactions in Diffusion Flame written by H. C. Soong and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : SHEAU-MING SHIAH
Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.3/5 (91 download)
Download or read book DYNAMIC BEHAVIOR OF A DENSE SPRAY DIFFUSION FLAME IN A POTENTIAL VORTEX (DIFFUSION FLAME). written by SHEAU-MING SHIAH and published by . This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: approximation of a viscous vortex by a potential vortex are also developed.
Author : R. Borghi
Publisher : Springer Science & Business Media
ISBN 13 : 146139631X
Total Pages : 958 pages
Book Rating : 4.4/5 (613 download)
Download or read book Turbulent Reactive Flows written by R. Borghi and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent reactive flows are of common occurrance in combustion engineering, chemical reactor technology and various types of engines producing power and thrust utilizing chemical and nuclear fuels. Pollutant formation and dispersion in the atmospheric environment and in rivers, lakes and ocean also involve interactions between turbulence, chemical reactivity and heat and mass transfer processes. Considerable advances have occurred over the past twenty years in the understanding, analysis, measurement, prediction and control of turbulent reactive flows. Two main contributors to such advances are improvements in instrumentation and spectacular growth in computation: hardware, sciences and skills and data processing software, each leading to developments in others. Turbulence presents several features that are situation-specific. Both for that reason and a number of others, it is yet difficult to visualize a so-called solution of the turbulence problem or even a generalized approach to the problem. It appears that recognition of patterns and structures in turbulent flow and their study based on considerations of stability, interactions, chaos and fractal character may be opening up an avenue of research that may be leading to a generalized approach to classification and analysis and, possibly, prediction of specific processes in the flowfield. Predictions for engineering use, on the other hand, can be foreseen for sometime to come to depend upon modeling of selected features of turbulence at various levels of sophistication dictated by perceived need and available capability.
Author : Howard D. Ross
Publisher : Elsevier
ISBN 13 : 0080549977
Total Pages : 601 pages
Book Rating : 4.0/5 (85 download)
Download or read book Microgravity Combustion written by Howard D. Ross and published by Elsevier. This book was released on 2001-09-03 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to understanding combustion, the burning of a substance that produces heat and often light, in microgravity environments-i.e., environments with very low gravity such as outer space. Readers are presented with a compilation of worldwide findings from fifteen years of research and experimental tests in various low-gravity environments, including drop towers, aircraft, and space.Microgravity Combustion is unique in that no other book reviews low- gravity combustion research in such a comprehensive manner. It provides an excellent introduction for those researching in the fields of combustion, aerospace, and fluid and thermal sciences. * An introduction to the progress made in understanding combustion in a microgravity environment* Experimental, theoretical and computational findings of current combustion research* Tutorial concepts, such as scaling analysis* Worldwide microgravity research findings
