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An Experimental Investigation Of Unsteady Thrust Augmentation Using A Speaker Driven Jet
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721635603 Total Pages :32 pages Book Rating :4.6/5 (356 download)
Book Synopsis An Experimental Investigation of Unsteady Thrust Augmentation Using a Speaker-Driven Jet by : National Aeronautics and Space Administration (NASA)
Download or read book An Experimental Investigation of Unsteady Thrust Augmentation Using a Speaker-Driven Jet written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation is described in which a simple speaker-driven jet was used as a pulsed thrust source (driver) for an ejector configuration. The objectives of the investigation were twofold: first, to add to the experimental body of evidence showing that an unsteady thrust source, combined with a properly sized ejector generally yields higher thrust augmentation values than a similarly sized, steady driver of equivalent thrust. Second, to identify characteristics of the unsteady driver that may be useful for sizing ejectors, and predicting what thrust augmentation values may be achieved. The speaker-driven jet provided a convenient source for the investigation because it is entirely unsteady (having no mean component) and because relevant parameters such as frequency, time-averaged thrust, and diameter are easily variable. The experimental setup will be described, as will the various measurements made. These include both thrust and Digital Particle Imaging Velocimetry of the driver. It will be shown that thrust augmentation values as high as 1.8 were obtained, that the diameter of the best ejector scaled with the dimensions of the emitted vortex, and that the so-called Formation Number serves as a useful dimensionless number by which to characterize the jet and predict performance. Paxson, Daniel E. and Wernet, Mark P. and John, Wentworth T. Glenn Research Center NASA/TM-2004-212909, AIAA Paper 2004-0092, E-14332
Download or read book Research & Technology 2003 written by and published by DIANE Publishing. This book was released on with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combustion for Power Generation and Transportation by : Avinash Kumar Agarwal
Download or read book Combustion for Power Generation and Transportation written by Avinash Kumar Agarwal and published by Springer. This book was released on 2017-01-20 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research monograph presents both fundamental science and applied innovations on several key and emerging technologies involving fossil and alternate fuel utilization in power and transport sectors from renowned experts in the field. Some of the topics covered include: autoignition in laminar and turbulent nonpremixed flames; Langevin simulation of turbulent combustion; lean blowout (LBO) prediction through symbolic time series analysis; lasers and optical diagnostics for next generation IC engine development; exergy destruction study on small DI diesel engine; and gasoline direct injection. The book includes a chapter on carbon sequestration and optimization of enhanced oil and gas recovery. The contents of this book will be useful to researchers and professionals working on all aspects on combustion.
Book Synopsis AIAA Aerospace Sciences Meeting and Exhibit, 42nd by :
Download or read book AIAA Aerospace Sciences Meeting and Exhibit, 42nd written by and published by . This book was released on 2004 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4200 - 05-4249 by :
Download or read book 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4200 - 05-4249 written by and published by . This book was released on 2005 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 43rd AIAA Aerospace Sciences Meeting & Exhibit by :
Download or read book 43rd AIAA Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 2005 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Analytical and Experimental Investigation of the Performance of a Direct Acting Thrust Augmenter Utilizing a Rotating Disk to Induce Unsteady Flow by : Carl Herbert McNair
Download or read book An Analytical and Experimental Investigation of the Performance of a Direct Acting Thrust Augmenter Utilizing a Rotating Disk to Induce Unsteady Flow written by Carl Herbert McNair and published by . This book was released on 1963 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Propulsion and Power by :
Download or read book Journal of Propulsion and Power written by and published by . This book was released on 2008 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AN EXPERIMENTAL INVESTIGATION INTO THE SHAPE OF THRUST AUGMENTING SURFACES IN CONJUNCTION WITH COANDA-DEFLECTED JET SHEETS, PART 2 by :
Download or read book AN EXPERIMENTAL INVESTIGATION INTO THE SHAPE OF THRUST AUGMENTING SURFACES IN CONJUNCTION WITH COANDA-DEFLECTED JET SHEETS, PART 2 written by and published by . This book was released on 1965 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work is a continuation of the experimental investigations described in AD-611 759. The purpose was to increase the thrust augmentation of a configuration consisting of a Coanda surface (quadrant), deflecting the primary jet sheet through 90 degrees, in conjunction with additional (thrust augmenting) surfaces. The effect of a horizontal and vertical gap between the lip of the nozzle and the leading edge of the deflection surface, as well as the effect of a gap between its trailing edge and the downstream diffuser wall (tertiary flow) was studied. These experiments were carried out for a convergent (subsonic) and a convergent-divergent (supersonic) nozzle at various pressure ratios. The subsonic jet sheet produced the highest thrust augmentation. Tilting of the quadrant led to an increase in the augmentation ratio (excluding the lift acting on the nozzle), while the total thrust augmentation (including the lift over the nozzle) did not increase. Typical secondary and exit mixed flow velocity profiles were obtained. The highest total thrust augmentation observed was 1.37.
Book Synopsis AIAA Journal by : American Institute of Aeronautics and Astronautics
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2007 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace America written by and published by . This book was released on 2003 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University of Toronto. Institute for Aerospace Studies Publisher :Institute for Aerospace Studies, University of Toronto ISBN 13 : Total Pages :30 pages Book Rating :4.:/5 (632 download)
Book Synopsis An Experimental Investigation Into the Shape of Thrust Augmenting Surfaces in Conjunction with Coanda-deflected Jet Sheets : (part II) by : University of Toronto. Institute for Aerospace Studies
Download or read book An Experimental Investigation Into the Shape of Thrust Augmenting Surfaces in Conjunction with Coanda-deflected Jet Sheets : (part II) written by University of Toronto. Institute for Aerospace Studies and published by Institute for Aerospace Studies, University of Toronto. This book was released on 1964 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Two-dimensional Confined Jet Thrust Vector Control by : Timothy A. Talda (2LT, USAF.)
Download or read book Experimental Investigation of Two-dimensional Confined Jet Thrust Vector Control written by Timothy A. Talda (2LT, USAF.) and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation Into the Shape of Thrust Augmenting Surfaces in Conjunction with Coanda-deflected Jet Sheets by : T. Mehus
Download or read book An Experimental Investigation Into the Shape of Thrust Augmenting Surfaces in Conjunction with Coanda-deflected Jet Sheets written by T. Mehus and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Effect of Jet Exit Configuration on Thrust and Drag by : Edmund E. Callaghan
Download or read book Experimental Investigation of Effect of Jet Exit Configuration on Thrust and Drag written by Edmund E. Callaghan and published by . This book was released on 1951 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerothermodynamics of Gas Turbine and Rocket Propulsion by : Gordon C. Oates
Download or read book Aerothermodynamics of Gas Turbine and Rocket Propulsion written by Gordon C. Oates and published by AIAA. This book was released on 1997 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Symposium Papers written by and published by . This book was released on 1987 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
