Experimental Investigation Of Flow Induced Cavity Resonance

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Experimental Investigation Of Flow Induced Cavity Resonance

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Author : Paul Zoccola (Jr., J.)
language : en
Publisher:
Release Date : 2000

Experimental Investigation Of Flow Induced Cavity Resonance written by Paul Zoccola (Jr., J.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Boundary layer categories.

Experimental Investigation Of Flow Induced Cavity Resonance

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Author : Paul J. Zoccola, Jr.
language : en
Publisher:
Release Date : 2000-06-01

Experimental Investigation Of Flow Induced Cavity Resonance written by Paul J. Zoccola, Jr. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-06-01 with categories.

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.

Experimental Investigation Of Flow Induced Cavity Resonance

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Author :
language : en
Publisher:
Release Date : 2000

Experimental Investigation Of Flow Induced Cavity Resonance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.

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.

Proceedings Of The 2nd International Conference On Mechanical System Dynamics

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Author : Xiaoting Rui
language : en
Publisher: Springer Nature
Release Date : 2024-06-18

Proceedings Of The 2nd International Conference On Mechanical System Dynamics written by Xiaoting Rui and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-18 with Science categories.

The 2nd International Conference of Mechanical System Dynamics (ICMSD2023) is devoted to “Technology Innovations by Understanding Mechanical Dynamics”, with 18 sessions to promote research in dynamic theories on complex structures, multidisciplinary integration, and advanced technologies for applications. It is held on September 1–5 in Peking University, Beijing, China. The conference is expected to provide a platform for academic researchers and engineers in the field of mechanical system dynamics to exchange scientific and technical ideas.

Nasa Technical Paper

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Author :
language : en
Publisher:
Release Date : 1990

Nasa Technical Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Science categories.

Iutam Symposium On Unsteady Separated Flows And Their Control

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Author : Marianna Braza
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-09-29

Iutam Symposium On Unsteady Separated Flows And Their Control written by Marianna Braza and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-29 with Science categories.

This Volume is the Proceedings of the IUTAM Symposium on Unsteady Separated Flows and Their Control held in Corfu, Greece, 18–22 June 2007. This was the second IUTAM Symposium on this subject, following the symposium in Toulouse, in April 2002. The Symposium consisted of single plenary sessions with invited lectures, - lected oral presentations, discussions on special topics and posters. The complete set of papers was provided to all participants at the meeting. The thematic sessions of this Symposium are presented in the following: Experimental techniques for the unsteady ow separation Theoretical aspects and analytical approaches of ow separation Instability and transition Compressibility effects related to unsteady separation Statistical and hybrid turbulence modelling for unsteady separated ows Direct and Large-Eddy Simulation of unsteady separated ows Theoretical/industrial aspects of unsteady separated ow control This IUTAM Symposium concerned an important domain of Theoretical and Applied Mechanics nowadays. It focused on the problem of ow separation and of its control. It achieved a uni ed approach regrouping the knowledge provided from theoretical, experimental, numerical simulation and modelling aspects for unsteady separated ows (incompressible and compressible regimes) and included ef cient control devices to achieve attenuation or suppression of separation. The subject - eas covered important themes in the domain of fundamental research as well as in the domain of applications.

2023 Asia Pacific International Symposium On Aerospace Technology Apisat 2023 Proceedings

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Author : Song Fu
language : en
Publisher: Springer Nature
Release Date : 2024-07-01

2023 Asia Pacific International Symposium On Aerospace Technology Apisat 2023 Proceedings written by Song Fu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-01 with Technology & Engineering categories.

This book is a compilation of peer-reviewed papers from the 2023 Asia-Pacific International Symposium on Aerospace Technology (APISAT2023). The symposium is a common endeavour among the four national aerospace societies in China, Australia, Korea and Japan, namely, Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), Japan Society for Aeronautical and Space Sciences (JSASS) and Korean Society for Aeronautical and Space Sciences (KSAS). APISAT is an annual event initiated in 2009. It aims to provide the opportunity to Asia-Pacific nations for the researchers of universities and academic institutes, and for the industry engineers to discuss the current and future advanced topics in aeronautical and space engineering. This is the volume I of the proceedings.

Nasa Technical Memorandum

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Author :
language : en
Publisher:
Release Date : 1978

Nasa Technical Memorandum written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Aeronautics categories.

Nasa Technical Note

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Author :
language : en
Publisher:
Release Date : 1974

Nasa Technical Note written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with categories.

An Experimental Investigation Of The Airflow Over A Cavity With Antiresonance Devices

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Author : Donald A. Buell
language : en
Publisher:
Release Date : 1971

An Experimental Investigation Of The Airflow Over A Cavity With Antiresonance Devices written by Donald A. Buell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Aerodynamics categories.