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Author : R. E. Bland
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (112 download)
Download or read book Experimental Study of Flow-induced Vibrations at a Cavity Opening written by R. E. Bland and published by . This book was released on 1961 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paul Zoccola (Jr., J.)
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.3/5 (91 download)
Download or read book Experimental Investigation of Flow-induced Cavity Resonance written by Paul Zoccola (Jr., J.) and published by . This book was released on 2000 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (227 download)
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.
Author : Michael A. Kegerise
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
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:
Author : Paul J. Zoccola, Jr.
Publisher :
ISBN 13 : 9781423536567
Total Pages : 180 pages
Book Rating : 4.5/5 (365 download)
Download or read book Experimental Investigation of Flow-Induced Cavity Resonance written by Paul J. Zoccola, Jr. and published by . This book was released on 2000-06-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resonant excitation of a cavity by an equilibrium turbulent grazing flow was investigated. The objectives of the research were first, to understand the dynamic processes related to the shear tones generated by vortex shedding from the upstream edge, and then to determine practical techniques for controlling the excitation and reducing the resonance. Detailed measurements of the cavity pressure and the velocity field in the opening were performed. Spectral data on cavity pressure fluctuations were analyzed over a range of speeds to determine the behavior of both the shear tones and cavity tones during non-resonant and resonant conditions. The cross-spectral properties between the velocity components and cavity pressure were also obtained. The data support the finding that the resonant and nonresonant conditions are distinguished by the behavior of the convection velocity and by the distribution of energy production in the flow field. Techniques for controlling cavity resonance were also investigated. The measurements and data analyses techniques discussed above were also performed for three practical devices. These include a technique, developed by the author, whereby fluid is diverted into the cavity from the boundary layer. The diversion technique is the most effective in reducing cavity resonance.
Author : Randall S. Mainquist (1LT, USAF.)
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (132 download)
Download or read book An Experimental Investigation Into the Suppression of Flow-induced Pressure Oscillations in Two-dimensional Open Cavities written by Randall S. Mainquist (1LT, USAF.) and published by . This book was released on 1978 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajeev Jaiman
Publisher : Springer Nature
ISBN 13 : 9811985782
Total Pages : 1028 pages
Book Rating : 4.8/5 (119 download)
Download or read book Mechanics of Flow-Induced Vibration written by Rajeev Jaiman and published by Springer Nature. This book was released on 2023-06-10 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses various passive and active techniques for controlling unsteady flow dynamics and associated coupled mechanics of fluid-structure interaction. Coupled multiphysics and multidomain simulations are emerging and challenging research areas, which have received significant attention during the past decade. One of the most common multiphysics and multidomain problems is fluid-structure interaction (FSI), i.e., the study of coupled physical systems involving fluid and a structure that have a mechanical influence on each other. Regardless of the application area, the investigation toward modeling of fluid-structure interaction and the underlying mechanisms in dealing with coupled fluid-structure instability with real-world applications remains a challenge to scientists and engineers. This book is designed for students and researchers who seek knowledge of computational modeling and control strategies for fluid-structure interaction. Specifically, this book provides a comprehensive review of the underlying unsteady physics and coupled mechanical aspects of the fluid-structure interaction of freely vibrating bluff bodies, the self-induced flapping of thin flexible structures, and aeroelasticity of shell structures. Understanding flow-induced loads and vibrations can lead to safer and cost-effective structures, especially for light and high-aspect ratio structures with increased flexibility and harsh environmental conditions. Using the body-fitted and moving mesh formulations, the physical insights associated with structure-to-fluid mass ratios, Reynolds number, nonlinear structural deformation, proximity interference, near-wall contacts, free-surface, and other interacting physical fields are covered in this book. In conjunction with the control techniques, data-driven model reduction approaches based on subspace projection and deep neural calculus are covered for low-dimensional modeling of unsteady fluid-structure interaction.
Author :
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (946 download)
Download or read book Experimental Investigation of Flow-Induced Cavity Resonance written by and published by . This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resonant excitation of a cavity by an equilibrium turbulent grazing flow was investigated. The objectives of the research were first, to understand the dynamic processes related to the shear tones generated by vortex shedding from the upstream edge, and then to determine practical techniques for controlling the excitation and reducing the resonance. Detailed measurements of the cavity pressure and the velocity field in the opening were performed. Spectral data on cavity pressure fluctuations were analyzed over a range of speeds to determine the behavior of both the shear tones and cavity tones during non-resonant and resonant conditions. The cross-spectral properties between the velocity components and cavity pressure were also obtained. The data support the finding that the resonant and nonresonant conditions are distinguished by the behavior of the convection velocity and by the distribution of energy production in the flow field. Techniques for controlling cavity resonance were also investigated. The measurements and data analyses techniques discussed above were also performed for three practical devices. These include a technique, developed by the author, whereby fluid is diverted into the cavity from the boundary layer. The diversion technique is the most effective in reducing cavity resonance.
Author : Alejandro Gidi
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (181 download)
Download or read book An Experimental Study of the Flow Induced Bellows Vibrations written by Alejandro Gidi and published by . This book was released on 1993 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eduard Naudascher
Publisher : Routledge
ISBN 13 : 1351447858
Total Pages : 358 pages
Book Rating : 4.3/5 (514 download)
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.
Author : Elena Ciappi
Publisher : Springer
ISBN 13 : 331909713X
Total Pages : 364 pages
Book Rating : 4.3/5 (19 download)
Download or read book Flinovia - Flow Induced Noise and Vibration Issues and Aspects written by Elena Ciappi and published by Springer. This book was released on 2014-11-23 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow induced vibration and noise (FIVN) remains a critical research topic. Even after over 50 years of intensive research, accurate and cost-effective FIVN simulation and measurement techniques remain elusive. This book gathers the latest research from some of the most prominent experts in the field. It describes methods for characterizing wall pressure fluctuations, including subsonic and supersonic turbulent boundary layer flows over smooth and rough surfaces using computational methods like Large Eddy Simulation; for inferring wall pressure fluctuations using inverse techniques based on panel vibrations or holographic pressure sensor arrays; for calculating the resulting structural vibrations and radiated sound using traditional finite element methods, as well as advanced methods like Energy Finite Elements; for using scaling approaches to universally collapse flow-excited vibration and noise spectra; and for computing time histories of structural response, including alternating stresses. This book presents the proceedings of the First International Workshop on Flow Induced Noise and Vibration (FLINOVIA), which was held in Rome, Italy, in November 2013. The authors’ backgrounds represent a mix of academia, government, and industry, and several papers include applications to important problems for underwater vehicles, aerospace structures and commercial transportation. The book offers a valuable reference guide for all those working in the area of flow-induced vibration and noise.
Author : Atomic Energy of Canada Limited
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (562 download)
Download or read book Experimental Studies on Flow Induced Vibration to Support Steam Generator Design : Part I : Vibration of a Heated Cylinder in Two-phase Axial Flow written by Atomic Energy of Canada Limited and published by . This book was released on 1973 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elena Ciappi
Publisher : Springer
ISBN 13 : 3319767801
Total Pages : 365 pages
Book Rating : 4.3/5 (197 download)
Download or read book Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II written by Elena Ciappi and published by Springer. This book was released on 2018-05-25 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the proceedings of the Second International Workshop on Flow Induced Noise and Vibration (FLINOVIA), which was held in Penn State, USA, in April 2016. The authors’ backgrounds represent a mix of academia, government, and industry, and several papers include applications to important problems for underwater vehicles, aerospace structures and commercial transportation. The book offers a valuable reference guide for all those working in the area of flow-induced vibration and noise. Flow induced vibration and noise (FIVN) remains a critical research topic. Even after over 50 years of intensive research, accurate and cost-effective FIVN simulation and measurement techniques remain elusive. This book gathers the latest research from some of the most prominent experts in the field. The book describes methods for characterizing wall pressure fluctuations, including subsonic and supersonic turbulent boundary layer flows over smooth and rough surfaces using computational methods like Large Eddy Simulation; for inferring wall pressure fluctuations using inverse techniques based on panel vibrations or holographic pressure sensor arrays; for calculating the resulting structural vibrations and radiated sound using traditional finite element methods, as well as advanced methods like Energy Finite Elements; for using scaling approaches to universally collapse flow-excited vibration and noise spectra; and for computing time histories of structural response, including alternating stresses.
Author : Tomomichi Nakamura
Publisher : Elsevier
ISBN 13 : 0080559131
Total Pages : 311 pages
Book Rating : 4.0/5 (85 download)
Download or read book Flow Induced Vibrations written by Tomomichi Nakamura and published by Elsevier. This book was released on 2008-06-17 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called Flow-Induced Vibration.This book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design. The world-leading author team doesn’t assume prior knowledge of mathematical methods and provide the reader with information on the basics of modeling. The book includes several practical examples and thorough explanations of the structure, the evaluation method and the mechanisms to aid understanding of flow induced vibration. Helps ensure smooth plant operations Explains the structure, evaluation method and mechanisms Shows how to avoid vibrations in future plant design
Author :
Publisher :
ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.0/5 ( download)
Download or read book Flow-induced Vibrations written by and published by . This book was released on 1991 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. J. Pettigrew
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Experimental studies on flow-induced vibration to support steam generator design part iii : vibration of small tube bundles in liquid and two-phase cross-flow written by M. J. Pettigrew and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Atomic Energy of Canada Limited
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (131 download)
Download or read book EXPERIMENTAL STUDIES ON FLOW INDUCED VIBRATION TO SUPPORT STEAM GENERATOR DESIGN, PT. 1: VIBRATION OF A HEATED CYLINDER IN TWO-PHASE AXIAL FLOW. written by Atomic Energy of Canada Limited and published by . This book was released on 1973 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
