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Author: Heyang Wang
Publisher:
Published: 2007
Total Pages: 430
ISBN-13: 9780549400493
DOWNLOAD EBOOKOscillation and extinction in flames.
Download or read book Oscillation and Extinction in Flames written by Heyang Wang and published by . This book was released on 2007 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oscillation and extinction in flames.
Author: Kazunori Harada
Publisher: Springer
Published: 2016-10-04
Total Pages: 940
ISBN-13: 9811003769
DOWNLOAD EBOOKThis book focuses on topics in the entire spectrum of fire safety science, targeting research in fires, explosions, combustion science, heat transfer, fluid dynamics, risk analysis, structural engineering, and other subjects. The book contributes to a gain in advanced scientific knowledge and presents or advances new ideas in all topics in fire safety science. Two decades ago, the 1st Asia-Oceania Symposium on Fire Science and Technology was held in Hefei, China. Since then, the Asia-Oceania Symposia have grown in size and quality. This book, reflecting that growth, helps readers to understand fire safety technology, design, and methodology in diverse areas including historical buildings, photovoltaic panels, batteries, and electric vehicles.
Download or read book Fire Science and Technology 2015 written by Kazunori Harada and published by Springer. This book was released on 2016-10-04 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on topics in the entire spectrum of fire safety science, targeting research in fires, explosions, combustion science, heat transfer, fluid dynamics, risk analysis, structural engineering, and other subjects. The book contributes to a gain in advanced scientific knowledge and presents or advances new ideas in all topics in fire safety science. Two decades ago, the 1st Asia-Oceania Symposium on Fire Science and Technology was held in Hefei, China. Since then, the Asia-Oceania Symposia have grown in size and quality. This book, reflecting that growth, helps readers to understand fire safety technology, design, and methodology in diverse areas including historical buildings, photovoltaic panels, batteries, and electric vehicles.
Author: J. Whitelaw
Publisher:
Published: 1998
Total Pages: 30
ISBN-13:
DOWNLOAD EBOOKNaturally occurring pressure oscillations in a model combustor were quantified with heat release around 100 kW as functions of geometric and flow parameters and actively controlled by the oscillation of fuel flow. Amplitudes up to 10 kPa were dominated by the quarter-wave frequency of the duct length upstream of an annual ring, depending on the equivalence ratio of the annular flow and decreased as ring and a step were moved closer. Active control of pressure oscillations was sensitive to the location and addition of oscillated fuel and was more effective with oscillations of fuel in the main flow. Experiments with opposed flames showed that forced flame extinction depended on the total duration of pulsation and ranged from a few milliseconds to almost a second. Extinction times increased quasi-exponentially with decreasing amplitude and increasing frequency of oscillation for diffusion flames but were a non-monitonic function of the frequency inpremixed flames, with the longest extinction times corresponding to higher frequencies. The characteristics of the opposed flames were represented by the concept of a mixinglet with the width of the mixing layer a function of the sum of the bulk, the turbulent the periodic strain and the mixinglet assumed to be randomly convected. The results reproduced measured trends in the mean an rms of the scalar fluctuations and the dissipation in non-combusting, periodically forced, opposed jet flows and include extinction times in opposed flames that increased exponentially with frequency and decreasing amplitude again in accord with experiment.
Download or read book Combustion Oscillations, Extinction and Control written by J. Whitelaw and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally occurring pressure oscillations in a model combustor were quantified with heat release around 100 kW as functions of geometric and flow parameters and actively controlled by the oscillation of fuel flow. Amplitudes up to 10 kPa were dominated by the quarter-wave frequency of the duct length upstream of an annual ring, depending on the equivalence ratio of the annular flow and decreased as ring and a step were moved closer. Active control of pressure oscillations was sensitive to the location and addition of oscillated fuel and was more effective with oscillations of fuel in the main flow. Experiments with opposed flames showed that forced flame extinction depended on the total duration of pulsation and ranged from a few milliseconds to almost a second. Extinction times increased quasi-exponentially with decreasing amplitude and increasing frequency of oscillation for diffusion flames but were a non-monitonic function of the frequency inpremixed flames, with the longest extinction times corresponding to higher frequencies. The characteristics of the opposed flames were represented by the concept of a mixinglet with the width of the mixing layer a function of the sum of the bulk, the turbulent the periodic strain and the mixinglet assumed to be randomly convected. The results reproduced measured trends in the mean an rms of the scalar fluctuations and the dissipation in non-combusting, periodically forced, opposed jet flows and include extinction times in opposed flames that increased exponentially with frequency and decreasing amplitude again in accord with experiment.
Author: David M. Mann
Publisher:
Published: 1996
Total Pages: 302
ISBN-13:
DOWNLOAD EBOOKPartial contents: Supercritical droplet behavior; Fundamentals of acoustic instabilities in liquid-propellant rockets; Modeling liquid jet atomization proceses; Liquid-propellant droplets dynamics and combustions in supercritical forced convective environments; Contributions of shear coaxial injectors to liquid rocket motor combustion instabilities; High pressure combustion studies under combustion driven oscillatory flow conditions; Droplet collision on liquid propellant combustion; Combustion and plumes; Development of a collisional radiative emission model for strongly nonequilibrium flows; Energy transfer processes in the production of excited states in reacting rocket flows; modeling nonequilibrium radiation in high altitude plumes; kinetics of plume radiation, and of HEDMs and metallic fuels combustion; Nonsteady combustion mechanisms of advanced solid propellants; Chemical mechanisms at the burning surface. p15
Download or read book ARO and AFOSR Contractors Meeting in Chemical Propulsion, Held in Virginia Beach, Virginia on 3-6 June 1996 written by David M. Mann and published by . This book was released on 1996 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial contents: Supercritical droplet behavior; Fundamentals of acoustic instabilities in liquid-propellant rockets; Modeling liquid jet atomization proceses; Liquid-propellant droplets dynamics and combustions in supercritical forced convective environments; Contributions of shear coaxial injectors to liquid rocket motor combustion instabilities; High pressure combustion studies under combustion driven oscillatory flow conditions; Droplet collision on liquid propellant combustion; Combustion and plumes; Development of a collisional radiative emission model for strongly nonequilibrium flows; Energy transfer processes in the production of excited states in reacting rocket flows; modeling nonequilibrium radiation in high altitude plumes; kinetics of plume radiation, and of HEDMs and metallic fuels combustion; Nonsteady combustion mechanisms of advanced solid propellants; Chemical mechanisms at the burning surface. p15
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 1999 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: Jozef Jarosinski
Publisher: CRC Press
Published: 2009-02-12
Total Pages: 234
ISBN-13: 9780849384097
DOWNLOAD EBOOKExtensively using experimental and numerical illustrations, Combustion Phenomena: Selected Mechanisms of Flame Formation, Propagation, and Extinction provides a comprehensive survey of the fundamental processes of flame formation, propagation, and extinction. Taking you through the stages of combustion, leading experts visually display, mathematically explain, and clearly theorize on important physical topics of combustion. After a historical introduction to the field, they discuss combustion chemistry, flammability limits, and spark ignition. They also study counterflow twin-flame configuration, flame in a vortex core, the propagation characteristics of edge flames, instabilities, and tulip flames. In addition, the book describes flame extinction in narrow channels, global quenching of premixed flames by turbulence, counterflow premixed flame extinction limits, the interaction of flames with fluids in rotating vessels, and turbulent flames. The final chapter explores diffusion flames as well as combustion in spark- and compression-ignition engines. It also examines the transition from deflagration to detonation, along with the detonation wave structure. With a CD-ROM of images that beautifully illustrate a range of combustion phenomena, this book facilitates a practical understanding of the processes occurring in the conception, spread, and extinguishment of a flame. It will help you on your way to finding solutions to real issues encountered in transportation, power generation, industrial processes, chemical engineering, and fire and explosion hazards.
Download or read book Combustion Phenomena written by Jozef Jarosinski and published by CRC Press. This book was released on 2009-02-12 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively using experimental and numerical illustrations, Combustion Phenomena: Selected Mechanisms of Flame Formation, Propagation, and Extinction provides a comprehensive survey of the fundamental processes of flame formation, propagation, and extinction. Taking you through the stages of combustion, leading experts visually display, mathematically explain, and clearly theorize on important physical topics of combustion. After a historical introduction to the field, they discuss combustion chemistry, flammability limits, and spark ignition. They also study counterflow twin-flame configuration, flame in a vortex core, the propagation characteristics of edge flames, instabilities, and tulip flames. In addition, the book describes flame extinction in narrow channels, global quenching of premixed flames by turbulence, counterflow premixed flame extinction limits, the interaction of flames with fluids in rotating vessels, and turbulent flames. The final chapter explores diffusion flames as well as combustion in spark- and compression-ignition engines. It also examines the transition from deflagration to detonation, along with the detonation wave structure. With a CD-ROM of images that beautifully illustrate a range of combustion phenomena, this book facilitates a practical understanding of the processes occurring in the conception, spread, and extinguishment of a flame. It will help you on your way to finding solutions to real issues encountered in transportation, power generation, industrial processes, chemical engineering, and fire and explosion hazards.
Author: David M. Mann
Publisher:
Published: 2002
Total Pages: 186
ISBN-13:
DOWNLOAD EBOOKAbstracts are given for 6.1 basic research in chemical propulsion sponsored by the Army Research Office and the Air Force Office of Scientific Research.
Download or read book Army Research Office and Air Force Office of Scientific Research: 2002 Contractors Meeting in Chemical Propulsion written by David M. Mann and published by . This book was released on 2002 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts are given for 6.1 basic research in chemical propulsion sponsored by the Army Research Office and the Air Force Office of Scientific Research.
Author: Gabriel D. Roy
Publisher: CRC Press
Published: 2001-10-25
Total Pages: 552
ISBN-13: 1420040685
DOWNLOAD EBOOKComplex, vast, and multidisciplinary, chemical propulsion has been the subject of extensive investigation over the past few decades. Under the leadership of Gabriel Roy, this has been particularly true at the Office of Naval Research (ONR), where his team has focused on the three primary goals of combustion research: improving the efficiency, increasing the range and speed, and reducing the emissions and signatures of combustion systems. Advances in Chemical Propulsion: Science to Technology reports on the progress achieved by the outstanding team of scientists and engineers participating in the ONR Propulsion Program. Its chapters, each written by the scientists who performed the research, cover all aspects of the combustion process, from chemical synthesis to reaction pathways of the fuel, from combustor performance to the reduction of emissions, from the sooting problem to thrust vectoring, and from diagnostics to control. They discuss the relevant issues, describe the approach used and the results obtained, and show how the findings can be extended to practical applications. Richly illustrated and carefully edited for clarity, uniformity, and readability, Advances in Chemical Propulsion offers a comprehensive survey of the field, from pre- to post-combustion. It suggests directions for new research efforts and reflects the state-of-the-art technologies and issues that have a direct impact on combustion systems, both present and future.
Download or read book Advances in Chemical Propulsion written by Gabriel D. Roy and published by CRC Press. This book was released on 2001-10-25 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex, vast, and multidisciplinary, chemical propulsion has been the subject of extensive investigation over the past few decades. Under the leadership of Gabriel Roy, this has been particularly true at the Office of Naval Research (ONR), where his team has focused on the three primary goals of combustion research: improving the efficiency, increasing the range and speed, and reducing the emissions and signatures of combustion systems. Advances in Chemical Propulsion: Science to Technology reports on the progress achieved by the outstanding team of scientists and engineers participating in the ONR Propulsion Program. Its chapters, each written by the scientists who performed the research, cover all aspects of the combustion process, from chemical synthesis to reaction pathways of the fuel, from combustor performance to the reduction of emissions, from the sooting problem to thrust vectoring, and from diagnostics to control. They discuss the relevant issues, describe the approach used and the results obtained, and show how the findings can be extended to practical applications. Richly illustrated and carefully edited for clarity, uniformity, and readability, Advances in Chemical Propulsion offers a comprehensive survey of the field, from pre- to post-combustion. It suggests directions for new research efforts and reflects the state-of-the-art technologies and issues that have a direct impact on combustion systems, both present and future.
Author: Jacek Jezowski
Publisher: Elsevier
Published: 2009-06-12
Total Pages: 1200
ISBN-13: 9780444535252
DOWNLOAD EBOOKThe 19th European Symposium on Computer Aided Process Engineering contains papers presented at the 19th European Symposium of Computer Aided Process Engineering (ESCAPE 19) held in Cracow, Poland, June 14-17, 2009. The ESCAPE series serves as a forum for scientists and engineers from academia and industry to discuss progress achieved in the area of CAPE. * CD-ROM that accompanies the book contains all research papers and contributions * International in scope with guest speeches and keynote talks from leaders in science and industry * Presents papers covering the latest research, key top areas and developments in computer aided process engineering (CAPE)
Download or read book 19th European Symposium on Computer Aided Process Engineering written by Jacek Jezowski and published by Elsevier. This book was released on 2009-06-12 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 19th European Symposium on Computer Aided Process Engineering contains papers presented at the 19th European Symposium of Computer Aided Process Engineering (ESCAPE 19) held in Cracow, Poland, June 14-17, 2009. The ESCAPE series serves as a forum for scientists and engineers from academia and industry to discuss progress achieved in the area of CAPE. * CD-ROM that accompanies the book contains all research papers and contributions * International in scope with guest speeches and keynote talks from leaders in science and industry * Presents papers covering the latest research, key top areas and developments in computer aided process engineering (CAPE)
Download or read book A Mixing Model for the Calculation of Extinction in Oscillating Flames written by Katerina Sardi and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
