Results 201 to 210 of about 1,430 (262)

Rotating Stall in Axial Flow Compressors

Journal of the Aeronautical Sciences, 1957
The classical theories of linearized aerodynamics yields a complete description of the flow field due to the rotating stall in a two-dimensional cascade of airfoils, when the extension of the stalled region is small. The corresponding physical scheme can be used for larger stalled regions, without the limitations of the linearizing assumptions, if no ...
Fabri, Jean, Siestrunck, Raymond
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Nonlinear control experiments on an axial flow compressor

Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), 2002
A nonlinear control law is designed for a low order model of an axial flow compressor with a ring of bleed valves after the last compressor stage. The controller is implemented on a low speed, three stage experimental compressor. The region of attraction guaranteed by the control law is experimentally determined and is larger than that of the ...
Daniel Fontaine, Shengfang Liao, James Paduano, Petar V. Kokotovic   +3 more
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Investigations of Axial-Flow Compressors

Journal of Fluids Engineering, 1951
Abstract An approximate theory of the general perfect fluid flow in axial turbomachines is presented. The validity of the simplifying assumptions of the theory is justified by comparison with flow patterns measured in a large, low-speed, axial-flow compressor.
J. T. Bowen, R. H. Sabersky, W. D. Rannie   +2 more
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Robust control for axial-flow compressor - An algorithm

2008 10th International Conference on Control, Automation, Robotics and Vision, 2008
Local L2 gain method has been pursued to analyze the robustness of a family of stabilizing controllers near the rotating stall point in axial flow compressors. An matrix inequality is involved in computation of L2 gain which is usually very difficult to solve without resorting to numerical method. In order to reduce the computational cost, an algorithm
Tiebao Yang, Chun-Yi Su, Xiang Chen 0011, Henry Hu   +3 more
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Rotating stall control for axial flow compressors

Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171), 2001
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Calin Belta, Guoxiang Gu, Andrew G. Sparks, Siva Banda   +3 more
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The Axial Flow Compressor

1981
The axial flow compressor is the second type of dynamic compressor, whose general nature and capabilities were introduced in section 1.3. It absorbs energy from an external power source, raising the pressure of a continuous flow of working fluid by means of its blading geometry and motion.
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Prestall Instability in Axial Flow Compressors

Journal of Turbomachinery, 2020
Abstract The aim of the present paper is to improve the physical understanding of discrete prestall flow disturbances developing in the tip area of the compressor rotor. For this purpose, a complementary instrumentation was used in a single-stage axial compressor.
Marc Lehmann, Dieter Peitsch, Roland Rückert, Mario Eck   +3 more
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Instrumentation for Axial-Flow-Compressor Research

Journal of Fluids Engineering, 1952
Abstract A discussion of many of the air-flow instruments currently used in compressor research is given. A history of the development of some of the instruments is presented together with the reasons for adopting the present designs.
C. A. Meyer, R. P. Benedict
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Circumferential Asymmetry in Axial Flow Compressors

The Journal of the Royal Aeronautical Society, 1966
In this paper we are restricting our attention to those cases of circumferential inlet distortion where the distortion of the velocity profile is too large to be described as a small perturbation. Thus any theory describing the flow must use a mathematical model which is non-linear.
M. D. C. Doyle, J. H. Horlock
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