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Experimental Investigation Of Filtered Density Functions In Turbulent Jets And Turbulent Partially Premixed Flames
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Book Synopsis Experimental Investigation of Filtered Density Functions in Turbulent Jets and Turbulent Partially Premixed Flames by : Danhong Wang
Download or read book Experimental Investigation of Filtered Density Functions in Turbulent Jets and Turbulent Partially Premixed Flames written by Danhong Wang and published by . This book was released on 2005 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of Velocity-Scalar Filtered Joint Density Function for Improving Large-Eddy Simulation of Turbulent Combustion by :
Download or read book Experimental Study of Velocity-Scalar Filtered Joint Density Function for Improving Large-Eddy Simulation of Turbulent Combustion written by and published by . This book was released on 2005 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The filtered mass density function (FMDF) of mixture fraction and other filtered variables used in large-eddy simulation of turbulent combustion were studied using measurement data obtained in turbulent partially premixed methanelair (Sandia) flames. For subgrid-scale (SGS) scalar variance small compared to its mean, the FMDF was not far from Gaussian, and the SGS scalar was well mixed. For large SGS variance, the FMDF became bimodal, and the conditionally filtered scalar dissipation was bell-shaped, indicating the existence of a diffusion (dissipation) layer structure, which was similar to the mixture fraction profile in the counter-flow model for laminar flamelets. The conditionally filtered temperature near the stoichiometric mixture fraction decreased progressively with increasing SGS scalar variance. Local extinction events appeared to occur mostly when the SGS scalar variance was large, suggesting the possibility of flamelet extinction. The results suggested that the mixing regimes and the associated mixture fraction structure could potentially have strong influences on the combustion regime and extinction/reignition in turbulent non-premixed flames.
Book Synopsis Advanced Turbulent Combustion Physics and Applications by : N. Swaminathan
Download or read book Advanced Turbulent Combustion Physics and Applications written by N. Swaminathan and published by Cambridge University Press. This book was released on 2022-01-06 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore a thorough overview of the current knowledge, developments and outstanding challenges in turbulent combustion and application.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Premixed Flames by : Nedunchezhian Swaminathan
Download or read book Turbulent Premixed Flames written by Nedunchezhian Swaminathan and published by Cambridge University Press. This book was released on 2011-04-25 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: A work on turbulent premixed combustion is important because of increased concern about the environmental impact of combustion and the search for new combustion concepts and technologies. An improved understanding of lean fuel turbulent premixed flames must play a central role in the fundamental science of these new concepts. Lean premixed flames have the potential to offer ultra-low emission levels, but they are notoriously susceptible to combustion oscillations. Thus, sophisticated control measures are inevitably required. The editors' intent is to set out the modeling aspects in the field of turbulent premixed combustion. Good progress has been made on this topic, and this cohesive volume contains contributions from international experts on various subtopics of the lean premixed flame problem.
Book Synopsis Joint Meeting of the U.S. Sections of the Combustion Institute, Western States, Central States, Eastern States by :
Download or read book Joint Meeting of the U.S. Sections of the Combustion Institute, Western States, Central States, Eastern States written by and published by . This book was released on 2005 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Coaxial Turbulent Jets by : Jonathan Alan Bornstein
Download or read book Experimental Investigation of Coaxial Turbulent Jets written by Jonathan Alan Bornstein and published by . This book was released on 1977 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Compressible Turbulent Jets by : Zhexuan Wang
Download or read book Experimental Investigation of Compressible Turbulent Jets written by Zhexuan Wang and published by . This book was released on 2003 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Swirling Turbulent Jets by : Rahmat Taghavi
Download or read book Experimental Investigation of Swirling Turbulent Jets written by Rahmat Taghavi and published by . This book was released on 1988 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Combustion by : Norbert Peters
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.
Book Synopsis Experiments and Numerical Simulations of Turbulent Combustion of Diluted Sprays by : Bart Merci
Download or read book Experiments and Numerical Simulations of Turbulent Combustion of Diluted Sprays written by Bart Merci and published by Springer Science & Business Media. This book was released on 2014-03-27 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects the results of the 2nd and 3rd International Workshops on Turbulent Spray Combustion. The focus is on progress in experiments and numerical simulations for two-phase flows, with emphasis on spray combustion. Knowledge of the dominant phenomena and their interactions allows development of predictive models and their use in combustor and gas turbine design. Experts and young researchers present the state-of-the-art results, report on the latest developments and exchange ideas in the areas of experiments, modelling and simulation of reactive multiphase flows. The first chapter reflects on flame structure, auto-ignition and atomization with reference to well-characterized burners, to be implemented by modellers with relative ease. The second chapter presents an overview of first simulation results on target test cases, developed at the occasion of the 1st International Workshop on Turbulent Spray Combustion. In the third chapter, evaporation rate modelling aspects are covered, while the fourth chapter deals with evaporation effects in the context of flamelet models. In chapter five, LES simulation results are discussed for variable fuel and mass loading. The final chapter discusses PDF modelling of turbulent spray combustion. In short, the contributions in this book are highly valuable for the research community in this field, providing in-depth insight into some of the many aspects of dilute turbulent spray combustion.
Book Synopsis An Experimental Investigation of Chemically-reacting, Gas-phase Turbulent Jets by : Richard Joseph Gilbrech
Download or read book An Experimental Investigation of Chemically-reacting, Gas-phase Turbulent Jets written by Richard Joseph Gilbrech and published by . This book was released on 1991 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Ducted, Two-stream, Variable-density, Turbulent Jet Mixing with Recirculation by : Roy J. Schulz
Download or read book An Investigation of Ducted, Two-stream, Variable-density, Turbulent Jet Mixing with Recirculation written by Roy J. Schulz and published by . This book was released on 1977 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted of two-stream, variable-density, turbulent jet mixing with recirculation confined within an axisymmetric duct that simulated a combustor configuration. The recirculating flow fields in the combustor simulator were the result of coaxial jet mixing between a central, primary air stream with a velocity of about 650 ft/sec and an annular secondary stream of hydrogen with velocities of 13, 23, or 48 ft/sec, depending on the desired test conditions. Experimental measurements are presented of radial distributions of time-averaged axial velocity and hydrogen mass fraction, axial distributions of time-averaged static pressure on the duct wall, axial velocity on the duct centerline, and hydrogen mass fraction on the duct wall and on the duct centerline. A theoretical study of the experimental flows was also conducted using a finite difference numerical solution technique for the calculation of viscous, recirculating flows. Comparison of theory and experiment shows that the predictive technique and the turbulence transport model require further development before accurate prediction of recirculating turbulent flows can be realized.
Book Synopsis An Experimental Investigation of the Two-dimensional Turbulent Jet and Its Reattachment to an Offset Parallel Plate by : David Charles Thoman
Download or read book An Experimental Investigation of the Two-dimensional Turbulent Jet and Its Reattachment to an Offset Parallel Plate written by David Charles Thoman and published by . This book was released on 1984 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Confined, Multiple, Turbulent Jet Mixing with Recirculation by : Ashoke Ghosh
Download or read book An Experimental Investigation of Confined, Multiple, Turbulent Jet Mixing with Recirculation written by Ashoke Ghosh and published by . This book was released on 1984 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Models for Turbulent Reacting Flows by : Rodney O. Fox
Download or read book Computational Models for Turbulent Reacting Flows written by Rodney O. Fox and published by Cambridge University Press. This book was released on 2003-10-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents
