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Author : J. F. Escuret
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Numerical Simulations of Surge and Rotating Stall in Multi-stage Axial-flow Compressors written by J. F. Escuret and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yan-Ling Li
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (879 download)
Download or read book Numerical Simulations of Rotating Stall in Axial Flow Compressors written by Yan-Ling Li and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Ishii
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Numerical Investigation of Surge and Rotating Stall in Multistage Axial Compressors written by H. Ishii and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jan Tommy Gravdahl
Publisher : Springer Science & Business Media
ISBN 13 : 1447108272
Total Pages : 233 pages
Book Rating : 4.4/5 (471 download)
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.
Author : R. C. Pampreen
Publisher :
ISBN 13 :
Total Pages : 532 pages
Book Rating : 4.X/5 (4 download)
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].
Author : Saeid Niazi
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (451 download)
Download or read book Numerical Simulation of Rotating Stall and Surge Alleviation in Axial Compressors written by Saeid Niazi and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kevin Wilkes
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (317 download)
Download or read book Dynamic Modeling of Starting Aerodynamics and Stage Matching in an Axi-Centrifugal Compressor written by Kevin Wilkes and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine and Aeroengine Congress & Exhibition Birmingham, UK - June 10-13, 1996.
Author : Franklin K. Moore
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.F/5 ( download)
Download or read book A Theory of Rotating Stall of Multistage Axial Compressors written by Franklin K. Moore and published by . This book was released on 1983 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eddie Y.K. Ng
Publisher : Springer Science & Business Media
ISBN 13 : 3540724125
Total Pages : 154 pages
Book Rating : 4.5/5 (47 download)
Download or read book Compressor Instability with Integral Methods written by Eddie Y.K. Ng and published by Springer Science & Business Media. This book was released on 2007-07-07 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the quick integral approaches and advances in the field for the prediction of stall and surge problems in the compressor. The book is useful for people involved in the flow analysis, design and testing of rotating machinery. For students, it can be used as a specialized topic of senior undergraduate or graduate study. The book can also serve as self-study material.
Author : Robert W. Graham
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.3/5 (91 download)
Download or read book Rotating Stall Investigation of the 0.72 Hub-tip Ratio Single-stage Compressor written by Robert W. Graham and published by . This book was released on 1954 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel L. Gysling
Publisher :
ISBN 13 :
Total Pages : 347 pages
Book Rating : 4.:/5 (951 download)
Download or read book Dynamic Control of Rotating Stall in Axial Flow Compressors Using Aeromechanical Feedback written by Daniel L. Gysling and published by . This book was released on 1993 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Farzad Ashrafi
Publisher :
ISBN 13 : 9781321613261
Total Pages : 106 pages
Book Rating : 4.6/5 (132 download)
Download or read book Delay of Rotating Stall in Compressors Using Plasma Actuation written by Farzad Ashrafi and published by . This book was released on 2014 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotating stall is a well-known aerodynamic instability in compressors that limits the operating envelope of aircraft gas turbine engines. An innovative method for suppressing the most common form of rotating stall inception using an annular DBD plasma actuator had been proposed. A DBD plasma actuator is a simple solid-state device that converts electricity directly into flow acceleration through partial air ionization. However, the proposed concept had only been preliminarily evaluated with simple numerical simulations on an isolated axial rotor using a relatively basic CFD code. The current project provides both an experimental and a numerical assessment of this concept for an axial compressor stage as well as centrifugal compressor stage that are both part of a low-speed two-stage axial-centrifugal compressor test rig. The two configuration studied are the two-stage configuration with a 100 mN/m annular casing plasma actuator placed just upstream of the axial rotor leading edge, and the single-stage centrifugal compressor with the same actuator placed upstream of the impeller leading edge. The tested configuration were simulated with a sophisticated commercial RANS CFD code (ANSYS CFX) in which was implemented the latest engineering DBD plasma model and dynamic throttle boundary condition, using single-passage multiple blade row computational domains. The experiments show that the casing plasma actuator reduces the mass flow of the last stable point (stall point) by 19.28% for the axial compressor stage and 28.39% for the centrifugal compressor stage for which the impeller is the source of rotating stall. The CFD simulations indicate that in both types of compressors the actuator delays the stall inception by pushing the incoming/tip clearance flow interface downstream into the blade passage. In each case, the predicted percentage reduction in stalling mass flow matches the experimental value reasonably well. However, the CFD simulations over-predicts the mass flow of the stall point as well as the pressure rise of the centrifugal stage and under-predict the pressure rise of the axial stage. The main factors for the difference are likely slight discrepancies between the simulated and actual axial rotor blade geometry deformation and the inability of the simulation tool to accurately capture the total pressure loss in the hub region of the vaneless diffuser.
Author : H. Ishii
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book A Numerical Study of Surge and Rotating Stall in Axial Compressors written by H. Ishii and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Gogoi
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Model for Rotating Stall and Surge in Axial Flow Compressors written by A. Gogoi and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Michael Sebghati
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (267 download)
Download or read book Monitoring Axial-flow Compressors for Rotating Stall and Surge written by John Michael Sebghati and published by . This book was released on 1992 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marco Vagani
Publisher :
ISBN 13 : 9781267506733
Total Pages : 125 pages
Book Rating : 4.5/5 (67 download)
Download or read book Numerical Simulation and Modeling of Compressor Stage Instability of a Rotating Stall Nature written by Marco Vagani and published by . This book was released on 2012 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth C. Hall
Publisher : Springer Science & Business Media
ISBN 13 : 1402046057
Total Pages : 605 pages
Book Rating : 4.4/5 (2 download)
Download or read book Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines written by Kenneth C. Hall and published by Springer Science & Business Media. This book was released on 2006-05-11 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is a collection of technical papers that were presented at the 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held September 8-11, 2003 at Duke University in Durham, North Carolina. The papers represent the latest in state of the art research in the areas of aeroacoustics, aerothermodynamics, computational methods, experimental testing related to flow instabilities, flutter, forced response, multistage, and rotor-stator effects for turbomachinery.
