Download or read book Investigation of the Mixing of Coaxial Heterogeneous Gas Jets as Applied to Supersonic Combustion written by Gilles L. Hamelin (S/L, RCAF.) and published by . This book was released on 1965 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Mixing of Coaxial Heterogeneous Gas Jets as Applied to Supersonic Combustion written by Gilles L. Hamelin and published by . This book was released on 1965 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the turbulent mixing of a sonic jet of helium discharging coaxially into a supersonic jet of air was made using a two dimensional mixing chamber. Volumetric concentration profiles were obtained and mass concentration and velocity along the jet centerline were plotted. The results indicated that both these vary inversely with the distance from the mixing origin raised to a four third power. Schlieren photography was applied in a semi-quantitative manner to confirm the validity of the above findings. This research project finds a potential application in the study and analysis of supersonic combustion ramjet engines. (Author).
Download or read book Investigation of the Mixing of Perpendicular Gas Jets as Applied to Supersonic Combustion written by Stephen Patrick Condon (1LT, USAF.) and published by . This book was released on 1966 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 An Experimental Investigation of the Mixing of Compressible air Jets in a Coaxial Configuration written by James M. Eggers and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent mixing of compressible air in supersonic and subsonic coaxial jet flows.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Mixing of Perpendicular Gas Jets as Applied to Supersonic Combustion written by Stephan P. Condon and published by . This book was released on 1966 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the turbulent mixing of subsonic, sonic, and supersonic jets of helium discharging transversely into a supersonic jet of air was made using a two-dimensional mixing chamber. The investigation has a potential application in the field of the supersonic combustion ramjet engine. The Mach numbers of the helium jets were 0.75, 1.0, and 1.5, respectively, and the Mach number of the air jet was 1.5. Both the helium and air jets had stagnation temperatures of approximately 76F. The effects of combustion on the mixing were not considered. Volumetric concentration values and total pressure values were obtained at points in the mixing region, and helium volumetric concentration profiles were plotted. Schlieren photography was used to obtain a visualization of the flow structure. Sonic injection was found to be the most desirable method of injection due to depth of penetration and total pressure considerations. (Author).
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet in Supersonic Crossflow written by Mingbo Sun and published by Springer. This book was released on 2019-02-18 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on research into jets in supersonic crossflow carried out by the authors’ team over the past 15 years, this book summarizes and presents many cutting-edge findings and analyses on this subject. It tackles the complicated mixing process of gas jets and atomization process of liquid jets in supersonic crossflow, and studies their physical mechanisms. Advanced experimental and numerical techniques are applied to further readers’ understanding of atomization, mixing, and combustion of fuel jets in supersonic crossflow, which can promote superior fuel injection design in scramjet engines. The book offers a valuable reference guide for all researchers and engineers working on the design of scramjet engines, and will also benefit graduate students majoring in aeronautical and aerospace engineering.
Download or read book Mixing and Combustion of a Supersonic Fuel Jet and a Subsonic Coaxial Gas Stream written by John E Scott (Jr) and published by . This book was released on 1965 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of mixing and burning is described in which the progress of mixing and burning is followed by observing the spatial variation of static pressure in the mixing duct. Experiments showed that the duct length required for mixing and for mixing with simultaneous chemical reaction of the gaseous fuel jet are identical and are independent of the amount to be mixed and burned. In order to aid in the interpretation of the experimental data, the flow field is assumed to be ''piecewise uniform'' over the mixing duct cross section. The analytical variation of the static pressure in the mixing agrees in a semi-quantitative manner with the experimental data. The experimental and analytical results are combined to provide the spatial and temporal variation of the mixing paramete. It is found that the combustion process has the general effect of increasing the mean duct velocity which increases the turbulent exchange coefficient and, hence, increases the mixing rate. For the experimental geometry considered, the mixing and burning time is roughly half of the time required for mixing only and is independent of the energy released in the chemical reaction. (Author).
Download or read book Gas Sampling and Analysis in Combustion Phenomena written by G. Lengelle and published by . This book was released on 1973 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The review discusses the relevance of gas analysis in combustion phenomena, the problems of sampling gases, and methods of gas analysis. The topics include utilization of analysis data from combustion chambers and combustion kinetics, problems of sampling due to the probe and quenching, gas phase chromatography, mass spectrometry, absorption spectra, and other miscellaneous analysis methods.
Download or read book An Investigation of Supersonic Combustion and Heterogeneous Turbulent Jet Mixing Related to the Design operation of Scramjets written by Ian Thomas Osgerby and published by . This book was released on 1965 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical kinetic calculations of the combustion time in a constant area scramjet combustion (Mo=7) indicate reaction times 0.00001 secs., and show that the combustion process is usually controlled by diffusion. The mixing process in concentric fueld/air jets is investigated by means of integral forms of the equations of motion and slow mixing requires about 50 diameter. Initial contraction of the slow inner jet is predicted by the theory, and verified by experiment. The simulation of scramjet combustion conditions by a shock tunnel is considered feasible. (Author).
Download or read book Supersonic Mixing and Combustion of Coaxial Hydrogen Air Streams in a Duct written by James E. Drewry and published by . This book was released on 1971 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: A basic investigation of supersonic mixing and combustion which is relevant to advanced propulsion concepts for a high Mach number, high altitude flight regime is described. A method of laboratory simulation is employed which is considered to be suitable for fundamental studies of diffusional-controlled mixing and combustion of confined coaxial streams of hydrogen and air under conditions approaching those of actual flight. A unique test facility consisting of a gas-fired, ceramic-brick air storage heater and an electrical-resistance hydrogen heater was used to generate test flow conditions at low static pressures, over wide ranges of temperature and velocity. Research studies have been carried out to obtain basic flow field data pertinent to the problem of turbulent mixing and combustion of heterogeneous gas streams under these conditions. Auto-ignition data from tests involving sustained combustion at an air Mach number of 2.6 are also presented. (Author).
Download or read book Scramjets written by Mostafa Barzegar Gerdroodbary and published by Butterworth-Heinemann. This book was released on 2020-07-21 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scramjet engines are a type of jet engine and rely on the combustion of fuel and an oxidizer to produce thrust. While scramjets are conceptually simple, actual implementation is limited by extreme technical challenges. Hypersonic flight within the atmosphere generates immense drag, and temperatures found on the aircraft and within the engine can be much greater than that of the surrounding air. Maintaining combustion in the supersonic flow presents additional challenges, as the fuel must be injected, mixed, ignited, and burned within milliseconds. Fuel mixing, along with the configuration and positioning of the injectors and the boundary conditions, play a key role in combustion efficiency. Scramjets: Fuel Mixing and Injection Systems discusses how fuel mixing efficiency and the advantage of injection systems can enhance the performance of the scramjets. The book begins with the introduction of the supersonic combustion chamber and explains the main parameters on the mixing rate. The configuration of scramjets is then introduced with special emphasis on the main effective parameters on the mixing of fuel inside the scramjets. In addition, basic concepts and principles on the mixing rate and fuel distribution within scramjets are presented. Main effective parameters such as range of fuel concentration for the efficient combustion, pressure of fuel jet and various arrangement of jet injections are also explained. This book is for aeronautical and mechanical engineers as well as those working in supersonic combustion who need to know the effects of compressibility on combustion, of shocks on mixing and on chemical reactions, and vorticity on the flame anchoring. Explains the main applicable approaches for enhancement of supersonic combustion engines and the new techniques of fuel injection Shows how the interaction of main air stream with fuel injections can develop the mixing inside the scramjets Presents results of numerical simulations and how they can be used for the development of the combustion engines
Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet Rocket Nuclear Ion and Electric Propulsion written by W.H.T. Loh and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decade, rapid growth of knowledge in the field of jet, rocket, nuclear, ion and electric propulsion has resulted in many advances useful to the student, engineer and scientist. The purpose for offering this course is to make available to them these recent advances in theory and design. Accordingly, this course is organized into seven parts: Part 1 Introduction; Part 2 Jet Propulsion; Part 3 Rocket Propulsion; Part 4 Nuclear Propulsion; Part 5 Electric and Ion Propulsion; Part 6 Theory on Combustion, Detonation and Fluid Injection; Part 7 Advanced Concepts and Mission Applications. It is written in such a way that it may easily be adopted by other universities as a textbook for a one semester senior or graduate course on the subject. In addition to the undersigned who served as the course instructor and wrote Chapter I, 2 and 3, guest lecturers included: DR. G. L. DUGGER who wrote Chapter 4 "Ram-jets and Air-Aug mented Rockets," DR. GEORGE P. SUTTON who wrote Chapter 5 "Rockets and Cooling Methods," DR . . MARTIN SUMMERFIELD who wrote Chapter 6 "Solid Propellant Rockets," DR. HOWARD S. SEIFERT who wrote Chapter 7 "Hybrid Rockets," DR. CHANDLER C. Ross who wrote Chapter 8 "Advanced Nuclear Rocket Design," MR. GEORGE H. McLAFFERTY who wrote Chapter 9 "Gaseous Nuclear Rockets," DR. S. G. FORBES who wrote Chapter 10 "Electric and Ion Propul sion," DR. R. H. BODEN who wrote Chapter 11 "Ion Propulsion," DR.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992-11 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
