Effects of aerodynamic unsteadiness in axial turbomachines April 25-29, 2005

Cover of: Effects of aerodynamic unsteadiness in axial turbomachines |

Published by Von Karman Institute for Fluid Dynamics in Rhode Saint Genèse, Belgium .

Written in English

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Subjects:

  • Turbomachines -- Aerodynamics.

Edition Notes

Includes bibliographical references.

Book details

Statementedited by R. Dénos & G. Paniagua.
SeriesLecture series / Von Karman Institute for Fluid Dynamics -- 2005-03, Lecture series (Von Karman Institute for Fluid Dynamics) -- 2005-3.
ContributionsDénos, R., Paniagua, G., Von Karman Institute for Fluid Dynamics.
Classifications
LC ClassificationsTJ267 .E44 2005
The Physical Object
Pagination1 v. (various pagings) :
ID Numbers
Open LibraryOL20240529M
ISBN 102930389591

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Effects of aerodynamic unsteadiness in axial turbomachines April 25 - 29, ; R. Dénos & G. Paniagua Table of contents. TAN, C.S. – MIT Gas Turbine Laboratory, USA Unsteady flows in compressors; DÉNOS, R. & PANIAGUA, G. – von Karman Institute for Fluid Dynamics, Belgium Unsteady flows in turbines: generalities Unsteady flows in.

Part 2: Forced responses-Unsteady gust response in the frequency domain-Axial turbine blade vibrations induced by the stator flow-Mistuning and coupling effects in turbomachinery bladings-Evalution of the principle of aerodynamic superposition in forced response calculations-Comparison of models to predict low engine order excitation in a high Price: $ During this period a tremendous development in the field of unsteady aerodynamics and aeroelasticity in turbomachines has taken place.

As steady-state flow conditions become better known, and as blades in the turbomachine are constantly pushed towards lower weight, and higher load and efficiency, the importance of unsteady phenomena appear more.

Part III Multistage Effects Unsteady Aerodynamic Workon Oscillating Annular Cascades in Counter Rotation M. Namba,K. Nanba Structure of Unsteady VorticalWakes behind Blades of Mutual-MovingRows of an Axial Turbomachinev S.

Todd Bailie, Wing F. Ng,William W. Copenhaver vi. Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines by Kenneth C. Hall,available at Book Depository with free delivery worldwide.5/5(1). Different sources of unsteadiness in low-speed axial turbomachinery are identified and classified in this paper.

From the classical picture segregating non-periodic mechanisms (turbulence) from periodic phenomena (unsteadiness), a further decomposition is outlined to distinguish between forced (deterministic periodicities) and unforced (non-deterministic) unsteadiness.

This book describes the aerodynamic design and performance of axial flow fans and compressors, with the necessary theory, providing a comprehensive introduction to their design and performance. This paper summarizes the state of 3D CFD based models of the time-averaged flow field within axial flow multistage turbomachines.

Emphasis is placed on models that are compatible with the industrial design environment and those models that offer the potential of providing credible results at both design and off-design operating conditions. Aerodynamic-Rotordynamic Interaction in Axial Compression Systems—Part II: Impact of Interaction on Overall System Stability 27 August | Journal of Turbomachinery, Vol.No.

3 Flow instability and its control in compression systems. Search results for: 'aeroelasticity in axial flow turbomachines' Search results for 'aeroelasticity in axial flow turbomachines' Items 1 to 10 of total Effects of aerodynamic unsteadiness in axial turbomachines - VKI LS € Add to Cart.

VKI LS This textbook is a collection of technical papers that were presented at the 10 th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held Septemberat 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. Effects of aerodynamic unsteadiness in axial turbomachines book   [15] Tan C. S., “ Effects of Aerodynamic Unsteadiness in Axial Turbomachines,” VKI Lecture Series Unsteady Flows in Compressors, Von Karman Institute for Fluid Mechanics, Rhode Saint Genese, Be, Google Scholar.

Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines and Propellers by H.M. Atassi,available at Book Depository with free delivery worldwide. Book, Internet Resource: annular cascades in counter rotation-Stucture of unsteady vortical wakes behind blades of mutual-moving rows of an axial turbomachine-The effect of mach number on LP turbine wake-blade interaction-Multistage coupling for unsteady flows in turbomachinery-Part 4: Aeroacoustics- Passive noise control by vane lean and.

Axial Turbine Blade Vibrations Induced by the Stator Flow M. Schmitz, O. Schäfer, J. Szwedowicz, T. Secall-Wimmel, T. Sommer Mistuning and Coupling Effectsin Turbomachinery Bladings Gerhard Kahl Evaluation of the Principle of Aerodynamic Superposition in Forced Response Calculations Stefan Schmitt, Dirk Nürnberger, Volker.

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.

Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines Josef L. Staud 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 Septemberat Duke University in Durham, North Carolina.

Accurate predictions of unsteady forcing on turbine blades are essential for the avoidance of high-cycle-fatigue issues during turbine engine development. Further, if one can demo.

(SciTech Book News, December ) Author Bios Naixing Chen is a Professor of Aerodynamics at Institute of Engineering Thermophysics, Chinese Academy of Sciences, where he has been working for nearly 30 years since and had served as the former Director ( ) and Honorary Chairman of Scientific Committee ( - ).

The inherent unsteadiness of the flow within turbomachines 20 References 21 Problems 22 2. Basic Thermodynamics, Three-dimensional Flows in Axial Turbomachines Introduction Theory of radial equilibrium The indirect problem It is now twenty years since the third edition of this book was published and in.

Hemberger, D, Filsinger, D, & Bauer, H. "Influence of Aerodynamic Mistuning and Aerodynamic Coupling on Vibration Behavior of Mistuned Small Radial Turbine Wheels." Proceedings of the ASME Turbo Expo Turbomachinery Technical Conference and Exposition. Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines.

Part of the Solid Mechanics and Its Applications book series (SMIA, volume AGARD Manual on Aeroelasticity in Axial-Flow Turbomachines J. R., “A Linearized Unsteady Aerodynamic Analysis for Transonic Cascades”, J. of Fluid Mechanics, Vol.

(), pp. – (source: Nielsen Book Data) Summary 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 Septemberat.

Over the past 30 years, leading experts in turbomachinery unsteady aerodynamics, aer- coustics, and aeroelasticity from around the world have gathered to present and discuss recent advancements in the?eld. The?rst International Symposium on Unsteady Aero- namics, Aeroacoustics, and Aeroelasticity of Turbomachines (ISUAAAT) was held in Paris, France in Since then, the symposium has been.

The new edition will continue to be of use to engineers in industry and technological establishments, especially as brief reviews are included on many important aspects of Turbomachinery, giving pointers towards more advanced sources of information.

For readers looking towards the wider reaches of the subject area, very useful additional reading is referenced in the bibliography.4/5(3).

As the maximum torsion of body 1 at the joint is degree in the deployment simulation considering structural flexibility and aerodynamic unsteadiness, it induces little effect in the axial and Y-direction deformations. Therefore, this simulation. On account of large pressure drop and associated thermodynamic effect the overall isentropic efficiency is not a true index of aerodynamic or hydraulic performance of machine.

Different stages with the same pressure drop located in different regions of h-s plane will give different values of work output. Effect of Reheat (Turbines). Blade row interference effects in axial turbomachinery stages: Februaryand economic relevance of understading blade row interaction effects in turbomachinery / D.C.

Wisler --Impact of unsteadiness induced by adjacent airfoils rows on # Turbomachines--Aerodynamics\/span>\n \u00A0\u00A0\u00A0\n schema:about\/a> http:\/\/id. Unsteady flow effects on turbine performance The impact of unsteady flow on turbomachine ry performance has been extensively studied in recent decades.

For the unsteady flow effects in turbomachinery, it is a source of aerodynamic noise to the acoustics experts, and it is a source of mechanical vibration to the aeroelasticity experts.

This paper describes numerical aerodynamic investigations of a two-stage, high pressure axial turbine at design and off-design operating conditions. The flow field in a high pressure turbine is highly complex due to unsteadiness of the flow and the various effects of blade row interaction.

Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines and Propellers. Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of.

Aerodynamic Design of Axial Compressor: Turbomachinery Aerodynamics: LecPPT: Axial Compressor Design 3-D Blade Shapes: Turbomachinery Aerodynamics: LecPPT: Noise problem in Axial Compressors and Fans: Turbomachinery Aerodynamics: LecPPT: Axial Turbine Fundamental Aerothermodynamics: Turbomachinery Aerodynamics.

Volume X of the High Speed Aerodynamics and Jet Propulsion series. Contents include: Theory of Two-Dimensional Flow through Cascades; Three-Dimensional Flow in Turbomachines; Experimental Techniques; Flow in Cascades; The Axial Compressor Stage; The Supersonic Compressor; Aerodynamic Design of Axial Flow Turbines; The Radial Turbine; The Centrifugal Compressor; Intermittent Flow Effects.

Various aerodynamic effects, such as wake shedding at the trailing edge, secondary flows in radial direction, blade vibrations, flow leakage in axial gaps, shock waves and effects at trailing edge in transonic stages, angles of attack at the leading edges, etc., can seriously affect the rotor blades and their efficiency performance.

Effects of aerodynamic unsteadiness in axial turbomachines: April[] Rhode Saint Genèse, Belgium: Von Karman Institute for Fluid Dynamics, c Description.

Dai, X, & Yan, X. "Effects of Labyrinth Fin Wear on Aerodynamic Performance of Turbine Stages: Part II — Mushrooming Damages." Proceedings of the ASME Turbo Expo Turbomachinery Technical Conference and Exposition.

Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines. Phoenix, Arizona, USA. June 17–21, Axial Turbine Aerodynamics for Aero-engines: Flow Analysis and Aerodynamics Design - Kindle edition by Zou, Zhengping, Wang, Songtao, Liu, Huoxing, Zhang, Weihao.

Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Axial Turbine Aerodynamics for Aero-engines: Flow Analysis and Aerodynamics Author: Zhengping Zou, Songtao Wang, Huoxing Liu.

Turbomachinery, in mechanical engineering, describes machines that transfer energy between a rotor and a fluid, including both turbines and a turbine transfers energy from a fluid to a rotor, a compressor transfers energy from a rotor to a fluid.

These two types of machines are governed by the same basic relationships including Newton's second Law of Motion and Euler's pump. This chapter focuses on advanced measurement techniques that have been used in applications of turbomachines including temperature measurements, pressure measurements, velocity measurements, and strain/stress measurements.

Though the measurement techniques are fundamentally the same as those used in other applications, the unique features associated with turbomachines. A general theory of three-dimensional flow in subsonic and supersonic turbomachines of axial, radial, and mixed-flow types, NACA TN, 2.

Erdos, J.I., Alzner, E. and McNally, W. Numerical solution of periodic transonic flow through a fan stage, AIAA. Impact of Periodic Unsteadiness on Performance and Heat Load in Axial Flow Turbomachines Results of an analytical and experimental investigation, directed at the understanding of the impact of periodic unsteadiness on the time-averaged flows in axial flow turbomachines, are presented.

Analysis of available experimental data, from a large-scale rotating rig (LSRR) (low speed .This volume aims to complete the review on the state of the art of unsteady turbomachinery aerodynamics by presenting the state of the art of structural dynamics and of aeroelasticity.

The eleven chapters in this second volume give an overview of the subject and reviews of the structural dynamics characteristics and analysis methods applicable.The effects of filtration on the performance and lifetime of ICE.

Aerodynamics of road vehicles, including: ways of minimizing drag force and fuel consumption, aerodynamic interference between road vehicles in parallel passing, aerodynamics of road vehicles crossing tunnels.

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