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Coaxial Airblast Atomizers
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723540226 Total Pages :202 pages Book Rating :4.5/5 (42 download)
Book Synopsis Coaxial Airblast Atomizers by : National Aeronautics and Space Administration (NASA)
Download or read book Coaxial Airblast Atomizers written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was performed to quantify the characteristics of the sprays of coaxial injectors with particular emphasis on those aspects relevant to the performance of rocket engines. Measurements for coaxial air blast atomizers were obtained using air to represent the gaseous stream and water to represent the liquid stream. A wide range of flow conditions were examined for sprays with and without swirl for gaseous streams. The parameters varied include Weber number, gas flow rate, liquid flow rate, swirl, and nozzle geometry. Measurements were made with a phase Doppler velocimeter. Major conclusions of the study focused upon droplet size as a function of Weber number, effect of gas flow rate on atomization and spray spread, effect of nozzle geometry on atomization and spread, effect of swirl on atomization, spread, jet recirculation and breakup, and secondary atomization. Hardalupas, Y. and Whitelaw, J. H. Unspecified Center NASA-CR-193845, NAS 1.26:193845, SRA-R93-9083-F NAS8-38872...
Book Synopsis Investigation of a Coaxial Airblast Atomizer Using Particle Image Velocimetry by : Daniel P. Hoeg
Download or read book Investigation of a Coaxial Airblast Atomizer Using Particle Image Velocimetry written by Daniel P. Hoeg and published by . This book was released on 2007 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parametric Experiments on Coaxial Airblast Jet Atomization by : Zoltan Farago
Download or read book Parametric Experiments on Coaxial Airblast Jet Atomization written by Zoltan Farago and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments using high speed, high magnification, and high contrast photography on airblast coaxial atomizers were carried out to study the wave characteristics of liquid surfaces, ligament breakup, and droplet formation. Liquid flow rate was changed from 4 to 50 kg/h, corresponding to a velocity range of 1.5 to 18 m/s, and a Reynolds number range of 1400 to 18000. Air flow rate was varied from 8 to 70 kg/h, corresponding to a velocity range of 22 to 180 m/s, and a Reynolds number range of 13000 to 105000. Tube wall thicknesses of 145 and 320 microns were used. Under different flow conditions, different jet instabilities (capillary, helical and Kelvin-Helmholtz) and different dominant mechanisms of ligament formation were observed. One of the most surprising experimental results is that, under certain flow conditions, the coaxial round liquid jet, surrounded by an axisymmetric annular air stream, forms a flat curling liquid sheet. This liquid sheet breaks into droplet clouds with a frequency of a few thousand Hertz and emits strong oscillations and fluctuating, highly non-axisymmetric vibrations.
Book Synopsis Recent Advances in Spray Combustion by : Kenneth K. Kuo
Download or read book Recent Advances in Spray Combustion written by Kenneth K. Kuo and published by AIAA. This book was released on 1996 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomization and Sprays by : Arthur Lefebvre
Download or read book Atomization and Sprays written by Arthur Lefebvre and published by CRC Press. This book was released on 1988-12-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomization and Sprays examines the atomization of liquids and characteristics of sprays. It explains the physical processes of atomization as well as guidelines for designing atomizers. In addition, it demonstrates how the importance of the size and velocity of a particle contributes to improved spray characterization. Coverage includes general co
Book Synopsis Effects of Airblast Atomizer Design Upon Spray Quality by : A. K. Jasuja
Download or read book Effects of Airblast Atomizer Design Upon Spray Quality written by A. K. Jasuja and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews the results of numerous investigations that have been conducted on airblast atomization as applied to gas turbine engines. The primary motivation for this is the need to identify the effect that various design features have upon the spray quality so that atomizers of optimum performance can be designed with a minimum of cost and complexity. Attention is focused upon such factors as the atomizer scale, configuration, the nature of fuel preparation before exposure to air, etc, for the most commonly used pre-filming and plain-jet airblast atomizers. The experimental mean drop size data included in this paper has been obtained through the use of well-established laser light-scattering techniques over a wide range of conditions. The general conclusion drawn from the data that is currently available is that the plain-jet airblast atomizers featuring multiple, transversely injected liquid jets into a swirling airstream yield spray quality comparable to that achieved by their pre-filming counterparts especially under high air pressure conditions. (Author).
Book Synopsis A Two-step Airblast Atomizer for Post-flame Combustion Studies by : H. L. Clack
Download or read book A Two-step Airblast Atomizer for Post-flame Combustion Studies written by H. L. Clack and published by . This book was released on 1997 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomization and Sprays by : Arthur H. Lefebvre
Download or read book Atomization and Sprays written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2017-03-27 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Book Synopsis Spray Generated by an Airblast Atomizer by : Feras Z. Batarseh
Download or read book Spray Generated by an Airblast Atomizer written by Feras Z. Batarseh and published by . This book was released on 2008 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Airblast Atomizer Design Features on Mean Drop Size by : N.K. Rizk
Download or read book Influence of Airblast Atomizer Design Features on Mean Drop Size written by N.K. Rizk and published by . This book was released on 1982 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spray Characteristics of Plain-jet Airblast Atomizers by : N. K. Rizk
Download or read book Spray Characteristics of Plain-jet Airblast Atomizers written by N. K. Rizk and published by . This book was released on 1983 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Advanced Sub-model for Airblast Atomizer by : Y. Liao
Download or read book An Advanced Sub-model for Airblast Atomizer written by Y. Liao and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies on the Performance of Airblast Atomizer Under Varying Geometric and Flow Conditions by : S. N. Sridhara
Download or read book Studies on the Performance of Airblast Atomizer Under Varying Geometric and Flow Conditions written by S. N. Sridhara and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimentelle Untersuchung Der Sprüheigenschaften Von Prefilming-Airblast-Zerstäubern by : Mehrzad Roudini
Download or read book Experimentelle Untersuchung Der Sprüheigenschaften Von Prefilming-Airblast-Zerstäubern written by Mehrzad Roudini and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Atomization and Sprays by : Nasser Ashgriz
Download or read book Handbook of Atomization and Sprays written by Nasser Ashgriz and published by Springer Science & Business Media. This book was released on 2011-02-18 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomization and sprays are used in a wide range of industries: mechanical, chemical, aerospace, and civil engineering; material science and metallurgy; food; pharmaceutical, forestry, environmental protection; medicine; agriculture; meteorology and others. Some specific applications are spray combustion in furnaces, gas turbines and rockets, spray drying and cooling, air conditioning, powdered metallurgy, spray painting and coating, inhalation therapy, and many others. The Handbook of Atomization and Sprays will bring together the fundamental and applied material from all fields into one comprehensive source. Subject areas included in the reference are droplets, theoretical models and numerical simulations, phase Doppler particle analysis, applications, devices and more.
Book Synopsis Experimental Study of the Spray Characteristics of a Research Airblast Atomizer by : Waldo A. Acosta
Download or read book Experimental Study of the Spray Characteristics of a Research Airblast Atomizer written by Waldo A. Acosta and published by . This book was released on 1985 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of airblast atomization was conducted using an especially designed atomizer in which the liquid first impinges on a splash plate, then is directed radially outward and is atomized by the air passing through two concentric, vaned swirlers that swirl the air in opposite directions. The effect of flow condition, air mass velocity (mass flow rate per unit area, rho sub A U sub A and liquid to air ratio on the mean drop size was studied. Seven different ethanol solutions were used to simulate changes in fuel physical properties. The range of atomizing air velocities was from 30 to 80 m/s. The mean drop diameter was measured at ambient temperature (295 K) and atmospheric pressure.
Book Synopsis Liquid Rocket Engine Combustion Instability by : Vigor Young
Download or read book Liquid Rocket Engine Combustion Instability written by Vigor Young and published by AIAA. This book was released on 1995 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Since the invention of the V-2 rocket during World War II, combustion instabilities have been recognized as one of the most difficult problems in the development of liquid propellant rocket engines. This book is the first published in the United States on the subject since NASA's Liquid Rocket Combustion Instability (NASA SP-194) in 1972. In this book, experts cover four major subject areas: engine phenomenology and case studies, fundamental mechanisms of combustion instability, combustion instability analysis, and engine and component testing. Especially noteworthy is the inclusion of technical information from Russia and China--a first.
