Suppression of Aerodynamically Induced Cavity Pressure Oscillations

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ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Suppression of Aerodynamically Induced Cavity Pressure Oscillations by : Leonard L. Shaw

Download or read book Suppression of Aerodynamically Induced Cavity Pressure Oscillations written by Leonard L. Shaw and published by . This book was released on 1979 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flight test program was performed to gain further insight into the phenomenon of flow-induced cavity pressure oscillations and to evaluate the effectiveness of suppression concepts in eliminating or reducing the pressure oscillations. The cavities tested were rectangular with approximate dimensions of 17 inches long, 8.5 inches deep, and 8.75 inches wide and were instrumented with microphones, static pressure ports, and a thermocouple. The flight speeds ranged from Mach number 0.6 to 1.3 at pressure altitudes of 3,000, 20,000, and 30,000 feet. The suppression devices included leading edge spoilers and deflectors and trailing edge ramps and deflectors. Several combinations of these were tested. The results indicate that the flow-induced pressure oscillations in a cavity of the dimensions tested and for the speed range tested can be significantly reduced with leading edge spoilers in conjunction with a trailing edge ramp. Reductions as large as 30 dB were achieved for the predominant model frequency for a one-third octave band. Other combinations of the suppression devices afforded some reduction, but the spoiler ramp combination proved most effective. (Author).

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

NASA Technical Memorandum

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ISBN 13 :
Total Pages : 608 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Memorandum by :

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1990 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Flow-induced Vibrations: an Engineering Guide

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Publisher : Routledge
ISBN 13 : 1351447858
Total Pages : 358 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Flow-induced Vibrations: an Engineering Guide by : Eduard Naudascher

Download or read book Flow-induced Vibrations: an Engineering Guide written by Eduard Naudascher and published by Routledge. This book was released on 2017-11-13 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed for engineers, this work considers flow-induced vibrations. It covers topics such as body oscillators; fluid loading and response of body oscillators; fluid oscillators; vibrations due to extraneously-induced excitation; and vibrations due to instability-induced excitation.

Aeronautical Engineering

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ISBN 13 :
Total Pages : 974 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Aeronautical Engineering by :

Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).

Chemical and Physical Processes in Combustion

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ISBN 13 :
Total Pages : 558 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Chemical and Physical Processes in Combustion by : Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting

Download or read book Chemical and Physical Processes in Combustion written by Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting and published by . This book was released on 1996 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Shock and Vibration Bulletin

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ISBN 13 :
Total Pages : 536 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis The Shock and Vibration Bulletin by :

Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1979 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wind Tunnels and Experimental Fluid Dynamics Research

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Publisher : BoD – Books on Demand
ISBN 13 : 9533076232
Total Pages : 728 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Wind Tunnels and Experimental Fluid Dynamics Research by : Jorge Colman Lerner

Download or read book Wind Tunnels and Experimental Fluid Dynamics Research written by Jorge Colman Lerner and published by BoD – Books on Demand. This book was released on 2011-07-27 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.

Unsteady Supersonic Combustion

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Publisher : Springer Nature
ISBN 13 : 9811535957
Total Pages : 380 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Unsteady Supersonic Combustion by : Mingbo Sun

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.

Fluid Mechanics and Fluid Power (Vol. 1)

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Publisher : Springer Nature
ISBN 13 : 9811970556
Total Pages : 479 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Fluid Mechanics and Fluid Power (Vol. 1) by : Suvanjan Bhattacharyya

Download or read book Fluid Mechanics and Fluid Power (Vol. 1) written by Suvanjan Bhattacharyya and published by Springer Nature. This book was released on 2023-05-10 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the 48th National Conference on Fluid Mechanics and Fluid Power (FMFP 2021) held at BITS Pilani in December 2021. It covers the topics such as fluid mechanics, measurement techniques in fluid flows, computational fluid dynamics, instability, transition and turbulence, fluid‐structure interaction, multiphase flows, micro- and nanoscale transport, bio-fluid mechanics, aerodynamics, turbomachinery, propulsion and power. The book will be useful for researchers and professionals interested in the broad field of mechanics.

Masters Theses in the Pure and Applied Sciences

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Publisher : Springer Science & Business Media
ISBN 13 : 1461303931
Total Pages : 427 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 888 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990-04 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the National Aerospace Propulsion Conference

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Publisher : Springer Nature
ISBN 13 : 9811923787
Total Pages : 633 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Proceedings of the National Aerospace Propulsion Conference by : Gullapalli Sivaramakrishna

Download or read book Proceedings of the National Aerospace Propulsion Conference written by Gullapalli Sivaramakrishna and published by Springer Nature. This book was released on 2022-07-23 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the 3rd National Aerospace Propulsion Conference (NAPC 2020). It discusses the recent trends in the area of aerospace propulsion technologies covering both air-breathing and non-air-breathing propulsion. The topics covered include state-of-the-art design, analysis and developmental testing of gas turbine engine modules and sub-systems like compressor, combustor, turbine and alternator; advances in spray injection and atomization; aspects of combustion pertinent to all types of propulsion systems and nuances of space, missile and alternative propulsion systems. The book will be a valuable reference for beginners, researchers and professionals interested in aerospace propulsion and allied fields.

DGLR/AIAA 14th Aeroacoustics Conference

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ISBN 13 :
Total Pages : 518 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis DGLR/AIAA 14th Aeroacoustics Conference by : Hanno Heller

Download or read book DGLR/AIAA 14th Aeroacoustics Conference written by Hanno Heller and published by . This book was released on 1992 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Experimental Study of Passive Control of Hypersonic Cavity Flow Oscillations

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ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis An Experimental Study of Passive Control of Hypersonic Cavity Flow Oscillations by : D. S. Dolling

Download or read book An Experimental Study of Passive Control of Hypersonic Cavity Flow Oscillations written by D. S. Dolling and published by . This book was released on 1998 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of open cavity flow has been made in a high Reynolds number, Mach 5 turbulent boundary layer. The majority of measurements made were of fluctuating wall pressures. The objectives were: (1) examine how effective changes in front and rear wall geometry were at attenuating the pressure oscillations, (2) explore how impingement of a shock wave (variable strength and position) the cavity flow, and (3) how stores (different geometries and positions) affected the cavity flow. In addition, techniques which were judged effective at attenuating pressure oscillations for the empty cavity were used with shock impingement and with stores in order to explore their effectiveness under perturbed flow conditions. The results show that vented and slotted walls, and spoilers are ineffective. A 3-D rear wall (swept in both planes and symmetric about the center line) attenuated the strongest oscillations by factors of up to 7 compared to the baseline rectangular cavity. Regardless of shock impingement position, shock strength, store position, store dimensions, store to cavity volume ratio and asymmetric store arrangement the cavity oscillation frequencies remain essentially unchanged. Based on the mean and rms Pressure distributions (whose magnitude varies substantially but whose basic shape does not change significantly) and surface flow patterns it appears that the essential flow structure also remains largely unchanged. These similarities suggest that control techniques developed for the empty cavity flow should be effective with shock impingement or store release. Tests using two passive control rear walls in perturbed cavity flow support this conclusion.

Masters Theses in the Pure and Applied Sciences

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Publisher : Plenum Publishing Corporation
ISBN 13 : 9780306443480
Total Pages : 392 pages
Book Rating : 4.4/5 (434 download)

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Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer

Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Plenum Publishing Corporation. This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.

36th Aerospace Sciences Meeting & Exhibit

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Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis 36th Aerospace Sciences Meeting & Exhibit by :

Download or read book 36th Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 1998 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: