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Surge Dynamics And Unsteady Flow Phenomena In Centrifugal Compressors
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Book Synopsis Surge Dynamics and Unsteady Flow Phenomena in Centrifugal Compressors by : Massachusetts Institute of Technology. Gas Turbine Laboratory
Download or read book Surge Dynamics and Unsteady Flow Phenomena in Centrifugal Compressors written by Massachusetts Institute of Technology. Gas Turbine Laboratory and published by . This book was released on 1988 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781726206143 Total Pages :28 pages Book Rating :4.2/5 (61 download)
Book Synopsis An Investigation of Surge in a High-speed Centrifugal Compressor Using Digital Piv by : National Aeronautics and Space Administration (NASA)
Download or read book An Investigation of Surge in a High-speed Centrifugal Compressor Using Digital Piv written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-27 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compressor stall is a catastrophic breakdown of the flow in a compressor, which can lead to a loss of engine power, large pressure transients in the inlet/nacelle and engine flameout. The implementation of active or passive strategies for controlling rotating stall and surge can significantly extend the stable operating range of a compressor without substantially sacrificing performance. It is crucial to identify the dynamic changes occurring in the flow field prior to rotating stall and surge in order to successfully control these events. Generally, pressure transducer measurements are made to capture the transient response of a compressor prior to rotating stall. In this investigation, Digital Particle Imaging Velocimetry (DPIV) is used in conjunction with dynamic pressure transducers to simultaneously capture transient velocity and pressure measurements in the non-stationary flow field during compressor surge. DPIV is an instantaneous, planar measurement technique which is ideally suited for studying transient flow phenomena in high speed turbomachinery and has been used previously to successfully map the stable operating point flow field in the diffuser of a high speed centrifugal compressor. Through the acquisition of both DPIV images and transient pressure data, the time evolution of the unsteady flow during surge is revealed.Wernet, Mark P. and Bright, Michelle M. and Skoch, Gary J.Glenn Research CenterCENTRIFUGAL COMPRESSORS; ROTATING STALLS; PARTICLE IMAGE VELOCIMETRY; PRESSURE MEASUREMENT; DYNAMIC PRESSURE; PRESSURE SENSORS; TRANSIENT PRESSURES; UNSTEADY FLOW...
Book Synopsis Unsteady Flow Phenomena in Industrial Centrifugal Compressor Stage by : L. Bonciani
Download or read book Unsteady Flow Phenomena in Industrial Centrifugal Compressor Stage written by L. Bonciani and published by . This book was released on 1982 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that rotating non-uniform flow pattern has a strong influence on high pressure centrifugal compressor vibrations. This paper shows the results of an experimental investigation on a typical centrifugal compressor stage running on an atmospheric pressure test rig. Unsteady flow was invariably observed at low flow well before surge. In order to determine the influence of the statoric components, the same impeller was repeatedly tested with the same vaneless diffuser, but varying return channel geometry. Experimental results show the strong effect exerted by the return channel, both on onset and on the behavior of unsteady flow.
Book Synopsis Predicting Flow-Induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor by : Roberto Navarro García
Download or read book Predicting Flow-Induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor written by Roberto Navarro García and published by Springer. This book was released on 2018-01-10 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis offers new insights into the fluid flow behavior of automotive centrifugal compressors operating under near-stall conditions. Firstly it discusses the validation of three-dimensional computational fluid dynamics (CFD) unsteady simulations against acoustic experimental measurements using an original procedure based on plane wave pressure decomposition. It then examines the configuration of the CFD cases, highlighting the key parameters needed for a successful calculation. Moreover, it describes both the compressor mean and unsteady flow field from best-efficiency to near-surge operating points. Lastly, it provides readers with explanations of the various phenomena that arise when the mass flow rate is reduced and the compressor is driven to poor and noisy performance. Written for students, researchers and professionals who want to improve their understanding of the complex fluid flow behavior in centrifugal compressors, the thesis offers valuable practical insights into reducing the acoustic emissions of turbochargers.
Book Synopsis Unsteady Flow Phenomena in an Axial Flow Compressor by : Peter James Boxhall
Download or read book Unsteady Flow Phenomena in an Axial Flow Compressor written by Peter James Boxhall and published by . This book was released on 1971 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement and Unsteady Flow Modeling of Centrifugal Compressor Surge by : Corine Meuleman
Download or read book Measurement and Unsteady Flow Modeling of Centrifugal Compressor Surge written by Corine Meuleman and published by . This book was released on 2002 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement and Unsteady Flow Modelling of Centrifugal Compressor Surge by : Corina Henrica Jacoba Meuleman
Download or read book Measurement and Unsteady Flow Modelling of Centrifugal Compressor Surge written by Corina Henrica Jacoba Meuleman and published by . This book was released on 2002 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compressor Surge and Rotating Stall by : Jan Tommy Gravdahl
Download or read book Compressor Surge and Rotating Stall written by Jan Tommy Gravdahl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology impacts all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies . . . , new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. Operating plant as close as possible to constraint boundaries so often brings economic benefits in industrial process control. This is the conundrum at the heart of this monograph by Tommy Gravdahl and Olav Egeland on stall control for compressors. Operation of the compressor closer to the surge line can increase operational efficiency and flexibility The approach taken by the authors follows the modern control system paradigm: -physical understanding, detailed modelling and simulation studies and finally control studies. The thoroughness of the presentation, bibliography and appendices indicates that the volume has all the hallmarks of being a classic for its subject. Despite the monograph's narrow technical content, the techniques and insights presented should appeal to the wider industrial control community as well as the gas turbine/compressor specialist. M. J. Grimble and M. A.
Book Synopsis Some Unsteady Flow Phenomena Downstream of an Axial Compressor Stage by : Robert Craig Lockhart
Download or read book Some Unsteady Flow Phenomena Downstream of an Axial Compressor Stage written by Robert Craig Lockhart and published by . This book was released on 1973 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 2001 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compressor Surge and Stall by : R. C. Pampreen
Download or read book Compressor Surge and Stall written by R. C. Pampreen and published by . This book was released on 1993 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: High efficiency axial and centrifugal compressors are important in fields as diverse as aircraft engines, superchargers and turbochargers, process and refrigeration compressors. Compressors must achieve high efficiency in blade rows in diffusing flow fields. Of equal and sometimes greater importance is the range os stable operation of the compressor. Blade row stall characteristics determine the limit os stable operation. Blading can stall uniformly with symmetric flow breakdown or asymmetrically in rotating stall, wich propagates around the periphery of the blade row. Depending on aerodynamic conditions, surge may occur instead of, in concert with, or subsequent to blade row stall. The transient breakdown and recovery of aerodynamic loading not only limits compressor performance but also leads to mechanical failures caused by the vibrational loads imposed on the blades. There is no need to know what initiates these performance limits so that surge and stall margins can be optimized and control strategies can be planned. the first step toward understanding is to be knowledgeable about he physical processes occurring during surge and stall. This will permit the designer to anticipate variable geometry needs such as variable inlet guide vanes, variable statuors, and bleed port strategies. Theoritical treatment is far from being well established, however, there are many approaches discussed in the literature. This book is a unique reference to the subject matter. Physical descriptions of the phenomena are given, test results are presented, and analytical studies are discussed. There has been much written about the experimental investigations and theoretical treatments related to surge and stall. To assist those who would pursue advancements in furthering ou knowledge of surge and stall, it seemed appropriate to have a resource that contains a compendium of information on this subject. That is the purpose of this book. [Source : d'après la 4e de couverture].
Book Synopsis An Investigation of Unsteady Impeller-diffuser Interactions in a Centrifugal Compressor by : William Barry Bryan
Download or read book An Investigation of Unsteady Impeller-diffuser Interactions in a Centrifugal Compressor written by William Barry Bryan and published by . This book was released on 1992 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASME Technical Papers written by and published by . This book was released on 2001 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unsteady Design-point Flow Phenomena in Transonic Compressors by : Jeffery Baird Gertz
Download or read book Unsteady Design-point Flow Phenomena in Transonic Compressors written by Jeffery Baird Gertz and published by . This book was released on 1985 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Centrifugal Compressors, Flow Phenomena and Performance by :
Download or read book Centrifugal Compressors, Flow Phenomena and Performance written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsteady Flow in Turbomachines written by and published by . This book was released on 1984 with total page 352 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 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
