Download or read book Fuel Injection Studies with Impinging Jet Nozzels written by Bluford Moor and published by . This book was released on 1955 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mixing Analysis of Like Doublet Injectors in High Pressure Environments for Gelled Propellant Simulants written by Vincent Notaro and published by . This book was released on 2014 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impinging doublet injectors offer rocket designers an effective way to atomize and mix opposing jets of fuel and oxidizer. The adaptability of the injector designs and ease of manufacturing make them attractive choices for designers. The adaptability of injector designs introduces many variables to the system like orifice diameter, nozzle orifice pairings, and working fluid to name a few. This expanse of variables requires characterization of phenomenon produced and measurement of performance. The characterization of phenomenon can be used to help explain performance. The atomization and spray characteristics of impinging jets are well understood. The studies in this field cover a multitude of design variables. While mixing quantification is well understood for liquid working fluids and similar orifice pairings, data are still lacking on non-Newtonian working fluids, specifically gelled simulants, and dissimilar orifice pairings. In addition, like mixing data exists for sprays in elevated ambient pressure conditions. Gelling of propellants provides advantages of easier handling and less vapor issues as compared to liquid propellants. Dissimilar orifice pairs offer the opportunity to achieve desired mixture ratios without largely varying operating conditions. A review of mixing studies for liquid working fluids is conducted. The studies focus on defining mixing efficiencies changes based on the injector design variables. In addition, some mixing mechanisms are established and discussed phenomenologically. A review of atomization studies is also conducted. These studies help shed light on mixing characteristics as well as help progress diagnostics in the mixing study field. These studies also focus injector design variables but cover more variables in greater depth than the mixing studies. A combination of a pressure chamber, two flow systems for the two different working fluids, and two pairings of nozzles is used to characterize mixing over different injection velocities and ambient conditions. In addition, the two working fluids and two different nozzle pairings allow comparisons to be made between the different cases. The injection velocity conditions range from 8 m/s to 20 m/s in ambient pressure conditions from atmospheric to 500 psi. Mixing efficiency is calculated using spray mass distributions acquired by PLIF technique. The data processing procedure is defined and is applicable to similar data acquisition systems. The mixing data acquired show that for similar orifice diameter impingement, the ambient pressure increase above atmospheric enhances mixing for both gelled and non-gelled fluid due to reduced break-up lengths. However, the mixing efficiency stops increasing and remains constant above a certain ambient pressure. Gelled simulant generally results in poorer mixing efficiencies than the non-gelled simulant, suggesting momentum carried and pre-impingement jet conditions are the determining factors in mixing. For dissimilar orifice diameter impingement, mixing is generally constant over all the ambient pressures including atmospheric. This may be due to the far downstream distance collection location. For optimized operating conditions, the dissimilar orifice-diameter impingement case can produce better mixing than the similar orifice diameter impingement case.

Download or read book Spray Characteristics of Impinging Jet Injectors at High Back Pressure written by and published by . This book was released on 2000 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomization characteristics of an impinging jet injector were studied over a range of injection velocities and back-pressures typical of liquid rocket injectors. Sheet breakup length was measured by strobe light imaging and was found to decrease with increasing injection velocity and chamber pressure. The experimentally measured breakup length was compared to linear stability theory and agreement was found to improve with increasing chamber gas density. At low chamber pressures, disturbances due to impact waves were believed to be the primary breakup mechanism. Measurements of droplet size distribution were made with a combination of laser diffraction and droplet imaging instruments. Droplet size was found to be a highly non-linear function of chamber pressure and axial distance from the impingement point. Sauter mean diameter was found to decrease with increasing chamber pressure and axial distance. Secondary atomization was believed to be the breakup mechanism responsible for this dependence. The width of the droplet size distribution was also found to be a function of chamber pressure.

Download or read book Research Memorandum written by and published by . This book was released on 1958 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Development of Nozzles for Spray Applications written by Danny L. King and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Research Comparing Lateral Control Devices Particularly at High Angles of Attack written by A. M. Rothrock and published by . This book was released on 1932 with total page 168 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 NACA Research Memorandum written by and published by . This book was released on 1958 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and technology report 1997 written by and published by DIANE Publishing. This book was released on with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1932 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Renewable Fuels for Sustainable Mobility written by Pravesh Chandra Shukla and published by Springer Nature. This book was released on 2023-05-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume discusses the use of renewable fuels for clean transportation and its applications on internal combustion engines. The contents focus on the key aspects of fuel production processes and its impact on various segments of the transportation sector and for sustainable mobility. Several kinds of fuels are assessed such as biofuels, alcohols, and hydrogen, and their effects on the combustion process are characterized by application. This volume will be of use to those working in academia and industry as well as energy experts and policy makers.

Download or read book Emission Control and Fuel Economy written by John H Johnson and published by SAE International. This book was released on 2005-06-27 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emission and fuel economy regulations and standards are compelling manufacturers to build ultra-low emission vehicles. As a result, engineers must develop spark-ignition engines with integrated emission control systems that use reformulated low-sulfur fuel. Emission Control and Fuel Economy for Port and Direct Injected SI Engines is a collection of SAE technical papers that covers the fundamentals of gasoline direct injection (DI) engine emissions and fuel economy, design variable effects on HC emissions, and advanced emission control technology and modeling approaches. All papers contained in this book were selected by an accomplished expert as the best in the field; reprinted in their entirety, they present a pathway to integrated emission control systems that meet 2004-2009 EPA standards for light-duty vehicles.

Download or read book Alkenes Advances in Research and Application 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-06-21 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alkenes—Advances in Research and Application: 2013 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about ZZZAdditional Research in a concise format. The editors have built Alkenes—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about ZZZAdditional Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Alkenes—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Issues in Technology Theory Research and Application 2012 Edition written by and published by ScholarlyEditions. This book was released on 2013-01-10 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Technology Theory, Research, and Application: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Science and Technology. The editors have built Issues in Technology Theory, Research, and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Science and Technology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Technology Theory, Research, and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book High Energy Density Fuels for Advanced Propulsion written by Ji-Jun Zou and published by John Wiley & Sons. This book was released on 2020-11-09 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively and systematically demonstrates the theory and practice of designing, synthesizing and improving the performance of fuels. The contents range from polycyoalkane fuels, strained fuels, alky-diamondoid fuels, hypergolic and nanofluid fuels derived from fossil and biomass. All the chapters together clearly describe the important aspects of high-energy-density fuels including molecular design, synthesis route, physiochemical properties, and their application in improving the aerocraft performance. Vivid schematics and illustrations throughout the book enhance the accessibility to the relevant theory and technologies. This book provides the readers with fundamentals on high-energy-density fuels and their potential in advanced aerospace propulsion, and also provides the readers with inspiration for new development of advanced aerospace fuels.

Download or read book Annual Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1937 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.