NDLI: Comparisons Between Measured and Calculated Stall Development in Four High-Speed Multi-Stage Compressors

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Demargne, A. A. J. Longley, J. P.
Copyright Year	1997
Abstract	In this paper the development of rotating stall in four different high-speed multi-stage compressors is investigated using a numerical simulation. Below 90 per cent of design speed the model calculates well the two-dimensional moderate to long lengthscale development of rotating stall, irrespective of the lengthscale and form of the stall inception mechanism. At higher operating speeds the model is less reliable, providing better comparisons for those compressors which exhibited modal rather than spike stall inception. The model is also used to investigate the feasibility of actively controlling the stall development process in a compressor. The conclusions reached are that mass injection and removal is far more effective than varying the blade stagger angles and that sensors must be upstream of actuators.
Sponsorship	International Gas Turbine Institute
File Format	PDF
ISBN	9780791878682
DOI	10.1115/97-GT-467
Volume Number	Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
Conference Proceedings	ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
Language	English
Publisher Date	1997-06-02
Publisher Place	Orlando, Florida, USA
Access Restriction	Open
Subject Keyword	Design Actuators Stall inception Blades Computer simulation Compressors Sensors
Content Type	Text
Resource Type	Article

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Comparisons Between Measured and Calculated Stall Development in Four High-Speed Multi-Stage Compressors