Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines and Propellers

Front Cover
H.M. Atassi
Springer Science & Business Media, Dec 6, 2012 - Science - 889 pages
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.
 

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Contents

An Innovative Algorithm for Periodic Flow Calculations Using
43
A Framework for MultiStage Unsteady Flow Calculations
57
Long Time Behavior of Unsteady Flow Computations
73
Simulation of 3DUnsteady Internal Flows
91
Time Linearized Euler Calculations for Unsteady Quasi3D
108
Unsteady Flow Field Predictions for Oscillating Cascades
127
Compressible Flows with Vortical Disturbances Around a Cascade
140
Development of a Steady Potential Solver for Use with Linearized
177
ThreeDimensional Unsteady Flow in a Single Stage AxialFlow
486
Reduced Frequency Effects on Gust Response Unsteady
507
The Response of a Low Solidity Symmetric Airfoil Cascade
528
TimeDependent Pressure Fluctuations on an Oscillating Turbine
547
Linear Oscillating Cascade Unsteady Aerodynamic Experiments
567
Experimental Investigation of the Unsteady Pressure Field on
583
Test Facility for Flutter Investigations with Variable Frequency
602
Aeroacoustics in Turbomachines and Propellers
619

Calculation of Unsteady Linearized Euler Flows in Cascades
195
2D Linearized Harmonic Euler Flow Analysis for Flutter
213
Prediction of Unsteady 2DFlow in Turbomachinery Bladings
231
AxialGap Effects on the Propagation of Unsteady Flow
250
T Korakianitis
267
TimeDependent Predictions and Analysis of Turbine Cascade Data
289
SuperSonic StatorRotor Interaction in a Turbine Stage
309
Oscillation of an Airfoil Behind a Detached Normal Shock 331
330
Unsteady Viscous Effects
357
Analysis of Blade Unsteady Boundary Layers and Wakes
377
Active Control of Centrifugal Compressor Rotating Stall
397
Computational Investigation of Airfoil Stall Flutter
415
Compressor Blade Gust Response to Attached and Separated Flow
433
Experimental Methods and Results in Unsteady Aerodynamics
455
Acoustic Control of Flow Instabilities
643
HighSpeed Helicopter Rotor NoiseShock Waves as a Potent
654
Unsteady Flowfield of a Propfan at Takeoff Conditions
669
Prediction of Noise Field of a Propfan at Angle of Attack
685
The Application of Experimental Data to Blade Wake Interaction
704
Aeroacoustics of Real Blade Cascades
725
High Frequency Gust Interaction with Single Loaded Airfoils
743
Influence of Airfoil Shape and Incidence Angle on HighFrequency
765
A Comparison of Mistuning Effects on Flutter Between Stalled
784
Splitter Blades for Passive Turbomachine Flutter Control
807
A NonSynchronous Vibration of Moving Blades Coupled with
829
Aeroelasticity of Fan Blades with Complex Modes
843
Panel Discussion on Standard Configurations for Unsteady Flow
858
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