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An Experimental Study Of Axisymmetric Cavity Oscillations In Low Speed Incompressible Flow
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Book Synopsis An Experimental Study of Axisymmetric Cavity Oscillations in Low Speed Incompressible Flow by : Jeremy David Brice Smith
Download or read book An Experimental Study of Axisymmetric Cavity Oscillations in Low Speed Incompressible Flow written by Jeremy David Brice Smith and published by . This book was released on 2005 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Incompressible Axisymmetric Cavity Flow with Swirl by : Lee Charles Wendell
Download or read book An Experimental Study of Incompressible Axisymmetric Cavity Flow with Swirl written by Lee Charles Wendell and published by . This book was released on 2006 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic study was performed of the flow phenomena in an axisymmetric cavity. Axial flow Reynolds numbers ranged from 100,000 to 530,000 for cavity L/D range of 0.25 to 1.65. Working medium for this study was water reflecting that only incompressible domain of cavity flow was covered in this study. Previous results of axisymmetric flow investigations were reproduced and extended to lower L/D values, with the modified test article. Introduction of swirl in the cavity flow was studied in detail for its effects on the enhancement or suppression of cavity modes that have been measured. The axial apparatus tested here recreated the results of that of the original apparatus. The values of the maximum peaks fell within the range of Helmholtz resonator values at that specific velocity, for a given L/D at and below L/D = 1.05, at the same flow conditions. At and above moderate swirl numbers (S> 0.4), first mode of oscillation was completely suppressed. There was also evidence of a flattening of the remaining trend at higher swirl numbers (S> 0.6). The range of maximum amplitudes experienced in this study was also in agreement with earlier work. Overall, a trend of an increase of the frequency with an increase in swirl was seen in all tests. Generally, the range of greatest increase was for 47.23 ft/s axial flow, with the addition of 38.56 ft/s to 54.54 ft/s of tangential flow. The frequency increase was attributed to the effects of swirl through the range of 0.3
Book Synopsis An Experimental Study of Low Speed Open Cavity Flows by : Abraham Joseph Meganathan
Download or read book An Experimental Study of Low Speed Open Cavity Flows written by Abraham Joseph Meganathan and published by . This book was released on 2000 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of Cavity Flow Oscillations with Upstream Mass-injection by : Christian R. Gauthier
Download or read book Experimental Study of Cavity Flow Oscillations with Upstream Mass-injection written by Christian R. Gauthier and published by . This book was released on 1990 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation to Suppress Flow-Induced Pressure Oscillations in Open Cavities by :
Download or read book Experimental Investigation to Suppress Flow-Induced Pressure Oscillations in Open Cavities written by and published by . This book was released on 1989 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: High speed tangential flow over open cavities (e.g. aircraft weapon bays) can invoke large pressure oscillations within the cavity. These large oscillations can damage the cavity structure as well as items placed within the cavity. The purpose of this experimental study was to determine the effectiveness of suppressing pressure oscillations by manipulating the shear layer over a two-dimensional cavity with a length-to-depth ratio of two. Two methods, a frequency controllable control surface (fence) and pulsating secondary airflow at the cavity leading edge, were used to manipulate the shear layer. The suppression effectiveness of the fence utilized in both passive and active modes (zero to 120 Hz) was evaluated at six airflow Mach numbers (0.62, 0.76, 0.90, 1.07, 1.28, 1.53). The effectiveness of pulsating secondary airflow was evaluated at one airflow Mach number (1.28) and two flow injection angles (parallel and 45 degrees to the flow) at frequencies ranging from zero to 80 Hz. The effect of steady flow injection was also evaluated at mass flow rates per unit width ranging from 0.323 to 1.27 (lbm/sec/ft). Pressure recordings from within the cavity were made for each test. The effectiveness of a pulsating fence in suppressing the peak mode pressure oscillations proved to be less than that achievable with the fence static. The pulsed secondary flow injection technique was most effective when pulsed at a 45 degree angle to the external flow. Theses.
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental study of perturbed high speed cavity flow by : Yuh-long Leu
Download or read book Experimental study of perturbed high speed cavity flow written by Yuh-long Leu and published by . This book was released on 1997 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Voorstellen samenwerking maatschappelijke dienstverlening Doesburg en Angerlo by :
Download or read book Voorstellen samenwerking maatschappelijke dienstverlening Doesburg en Angerlo written by and published by . This book was released on 1970 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-Speed Wind Tunnel Testing by : Jewel B. Barlow
Download or read book Low-Speed Wind Tunnel Testing written by Jewel B. Barlow and published by John Wiley & Sons. This book was released on 1999-02-22 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brand-new edition of the classic guide on low-speed wind tunnel testing While great advances in theoretical and computational methods have been made in recent years, low-speed wind tunnel testing remains essential for obtaining the full range of data needed to guide detailed design decisions for many practical engineering problems. This long-awaited Third Edition of William H. Rae, Jr.'s landmark reference brings together essential information on all aspects of low-speed wind tunnel design, analysis, testing, and instrumentation in one easy-to-use resource. Written by authors who are among the most respected wind tunnel engineers in the world, this edition has been updated to address current topics and applications, and includes coverage of digital electronics, new instrumentation, video and photographic methods, pressure-sensitive paint, and liquid crystal-based measurement methods. The book is organized for quick access to topics of interest, and examines basic test techniques and objectives of modeling and testing aircraft designs in low-speed wind tunnels, as well as applications to fluid motion analysis, automobiles, marine vessels, buildings, bridges, and other structures subject to wind loading. Supplemented with real-world examples throughout, Low-Speed Wind Tunnel Testing, Third Edition is an indispensable resource for aerospace engineering students and professionals, engineers and researchers in the automotive industries, wind tunnel designers, architects, and others who need to get the most from low-speed wind tunnel technology and experiments in their work.
Book Synopsis An Experimental Study of Mass Injection Pattern Effects on Cavity Oscillations by : Glenn Christopher Cooper
Download or read book An Experimental Study of Mass Injection Pattern Effects on Cavity Oscillations written by Glenn Christopher Cooper and published by . This book was released on 1995 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Pressure Oscillations in Two- Dimensional Open Cavities by :
Download or read book An Experimental Investigation of Pressure Oscillations in Two- Dimensional Open Cavities written by and published by . This book was released on 1975 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted to determine the characteristics of the pressure oscillations in a small two-dimensional cavity exposed to tangential air flow. Various cavity configuration changes, involving the shape of the leading and trailing edge, were investigated to determine the relative capability to suppress the resonance in the cavity response. Five airflow Mach numbers (0.5, 0.6, 1.0, 1.3, 1.5) were used to investigate the Mach-response relationship. Two cavity lengths were considered (2 and 4 1/4 inches). The depth of the cavities was kept constant at one inch. Fluctuating pressure recordings and schlieren photographs were made of each test.
Book Synopsis An Experimental Investigation of Open Cavity Pressure Oscillations by : Dennis L. Carr
Download or read book An Experimental Investigation of Open Cavity Pressure Oscillations written by Dennis L. Carr and published by . This book was released on 1974 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was undertaken to investigate the use of a water table to define the parameters that influence the pressure oscillations resulting from air flow over open cavities. Tests were also conducted to investigate means to eliminate or reduce these oscillations. (Author).
Book Synopsis An Experimental Investigation of Flow-induced Cavity Oscillation by : Michael A. Kegerise
Download or read book An Experimental Investigation of Flow-induced Cavity Oscillation written by Michael A. Kegerise and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Issues in Mechanical Engineering: 2013 Edition by :
Download or read book Issues in Mechanical Engineering: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Mechanical Engineering / 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Additional Research. The editors have built Issues in Mechanical Engineering: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Additional 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 Issues in Mechanical Engineering: 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/.
