Download or read book Experimental Efforts for Supersonic Combustion Utilizing Hydrocarbon Fuels with Plasma Ignition written by Paul David Rudolph and published by . This book was released on 1993 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toward Plasma Assisted Ignition in Scramjets written by and published by . This book was released on 2003 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Air Force plasma ignition program is assessing the prospect of main-fuel ignition with plasma generating devices in a supersonic flow. As the study progresses baseline conditions of operation are being established such as the required operational time of the device to initiate a combustion shock train. The two plasma torches currently under investigation consist of a DC constricted-arc design from the Virginia Polytechnic Institute and State University and an AC unconstricted-arc design based on a modified spark-plug from Polytechnic University. The plasma torches are realistic in size and operate within current power constraints while differing substantially in orifice geometry. In order to compare the potential of each concept the flow physics of each part of the igniter/fuel-injector/combustor system are being studied. In each step of the program, we utilize CFD and experiments to help define and advance the ignition process. To understand the constraints involved with ignition process of a hydrocarbon fuel jet an experimental effort to study gaseous and liquid hydrocarbons is underway, involving the testing of ethylene and JP-7 fuels with nitrogen and air plasmas. Results from the individual igniter studies have shown the plasma igniters to produce hot pockets of highly excited gas with peak temperatures up to (and in some cases above) 5000 K at only 2-kW total input power. In addition ethylene and JP-7 flames with a significant level of OH as determined by OH PLIF were also produced in a Mach-2 supersonic flow with a total temperature and pressure of 590 K and 5.4 atm respectively.
Download or read book Experimental Investigation of Supersonic Combustion of Liquid Hydrocarbon Fuel Using Barbotage in the Aeroramp Configuration at M written by and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking TsAGl as follows: The contractor will investigate combustion of kerosene using barbotage by hydrogen and air in the aeroramp configuration at M=2.5 as described in his proposal dated 1 Jun 98.
Download or read book Ignition and Combustion of Liquid Hydrocarbon Fuels in Supersonic Flow written by Simon Slutsky and published by . This book was released on 1969 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was carried out to investigate the combustion of a liquid hydrocarbon (hexane) injected into a supersonic stream. Injection modes included wall and central injection configurations. Extremely rapid and intense heat release phenomena were obtained. It was concluded that this mode of combustion could be made to compete with that of pure gas phase combustion for many technological applications. A preliminary theoretical model of the combustion mechanism was constructed which accounts for many of the observed phenomena, and which explains the very rapid combustion characteristics.
Download or read book Control of Flow Structure and Ignition of Hydrocarbon Fuel in Cavity and Behind Wallstep of Supersonic Duct by Filamentary DC Discharge written by and published by . This book was released on 2011 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking Institute of High Temperatures RAS as follows: The contractor will investigate the phenomena of plasma-induced ignition of high speed, low temperature air-fuel mixtures using a recirculation zone created by a rearward facing wall step and wall cavity. The plasma will be generated using a multi-electrode, quasi direct-current electrical discharge. Fuel injectors will be located in the recirculation zone. The effects of plasma induced ignition, mixing intensification, flame-stabilization, and combustion completeness will be evaluated. Investigations will be carried out using both gaseous and liquid hydrocarbon fuels. Diagnostics include high speed video, Schlieren photography, pressure distribution measurements, electrical measurements, optical spectroscopy and infrared absorption spectroscopy. The research is mainly experimental, but will include several analytical and computational efforts for better understanding and verification of the results.
Download or read book The Scramjet Engine written by Corin Segal and published by Cambridge University Press. This book was released on 2009-06-22 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for high-speed propulsion has renewed development of the supersonic combustion ramjet engine (Scramjet engine) for hypersonic flight applications.
Download or read book Unsteady Supersonic Combustion written by Mingbo Sun and published by Springer Nature. This book was released on 2020-04-14 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the unsteady phenomena needed to understand supersonic combustion. Following an initial chapter that introduces readers to the basic concepts in and classical studies on unsteady supersonic combustion, the book highlights recent studies on unsteady phenomena, which offer insights on e.g. interactions between acoustic waves and flames, flow dominating instability, ignition instability, flame flashback, and near-blowout-limit combustion. In turn, the book discusses in detail the fundamental mechanisms of these phenomena, and puts forward practical suggestions for future scramjet design.
Download or read book An Experimental Investigation of a Reacting Supersonic Shear Layer Flow Using Plasma Ignition written by Steven William Vavrik and published by . This book was released on 1991 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proceedings of the 2021 Asia Pacific International Symposium on Aerospace Technology APISAT 2021 Volume 2 written by Sangchul Lee and published by Springer Nature. This book was released on 2022-09-29 with total page 1396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceeding comprises peer-reviewed papers of the 2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2021), held from 15-17 November 2021 in Jeju, South Korea. This book deals with various themes on computational fluid dynamics, wind tunnel testing, flow visualization, UAV design, flight simulation, satellite attitude control, aeroelasticity and control, combustion analysis, fuel injection, cooling systems, spacecraft propulsion and so forth. So, this book can be very helpful not only for the researchers of universities and academic institutes, but also for the industry engineers who are interested in the current and future advanced topics in aerospace technology.
Download or read book Model and Igniter Development for Plasma Assisted Combustion written by and published by . This book was released on 2004 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress on the authors' efforts to develop a detailed kinetic mechanism for C(sub 8)H(sub m) hydrocarbons and practical plasma igniters for plasma-assisted combustion are discussed. Shock tube validation experiments made in argon using a fixed stoichiometry (PHI = 1.0), pressures of approximately 0.95 and 1.05 atm, and temperatures ranging from 850 to 1200 K (post-reflected shock) are presented. The mechanism is being expanded to include electron kinetics and to allow for a degree of nonequilibrium modeled with separate electron and gas temperatures. Quantum calculations used to derive needed electron impact ionization/dissociation cross-sections for hydrocarbons are discussed. In addition, ignition of ethylene fuel in a Mach 2 supersonic flow with a total temperature of 590 K and pressure of 5.4 atm is demonstrated using a low frequency discharge with peak and average powers reaching 8 kW and 2.8 kW, respectively. (7 figures, 28 refs.).
Download or read book Microwave Air Plasma Supersonic Hydrocarbon Combustion Enhancement Experiments written by S. G. Chianese and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Superfast Homogeneous Plasma Ignition of Hydrogen Oxygen and Air Fuel Supersonic Flows by High Voltage Ionization Wave written by and published by . This book was released on 1999 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking Moscow Inst. of Physics and Technology as follows: 1) The contractor will perform experiments on ignition initiation by ionization wave in the H2-O2 mixture. Determine the ignition threshold shift. Study the combustion uniformity and synchronization in the system. 2) He will determine the active particle formation rate in ionization wave with the nanosecond time resolution. Measure electric field of ionization wave in hydrogen. Develop a numerical model determining the active particles generation in the fast ionization wave. Verify the numerical model with the use of experimental data.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment IDCOMPU2023 written by Xuzhu Dong and published by Springer Nature. This book was released on 2024-03-28 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes original, peer-reviewed research papers from the 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023), held in Wuhan, China. The topics covered include but are not limited to: insulation, discharge computations, electric power equipment, and electrical materials. The papers share the latest findings in the field of insulation and discharge computations of electric power equipment, making the book a valuable asset for researchers, engineers, university students, etc.
Download or read book Vaporizing and Endothermic Fuels for Advanced Engine Application Part Iv Preliminary Study of the Supersonic Combustion of Endothermic Hydrocarbon Fuels written by W. Chinitz and published by . This book was released on 1967 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical and experimental investigation has been undertaken to define the supersonic combustion characteristics of endothermic hydrocarbon fuels which are of interest as a result of research carried out at Shell Development Company. In the program discussed herein, principal attention was focussed upon the propane and methylcyclohexane dehydrogenation fuel systems. The ultimate objective is to define the parameters that affect the combustion process and to establish the feasibility of burning these fuels in supersonic flows. (Author).
Download or read book 41st AIAA Aerospace Sciences Meeting Exhibit written by and published by . This book was released on 2003 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced technologies in flow dynamics and combustion in propulsion and power volume II written by Lei Luo and published by Frontiers Media SA. This book was released on 2023-02-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
