The aerodynamic analysis of a four–stage centrifugal compressor was performed by means of a three–dimensional multi stage CFD code. The whole operating range of the compressor was investigated and the critical elements affecting the choke and stall limit were identified. The isolated impellers were also analyzed separately and the flow field was compared to the one coming from the multistage analysis. This allowed us to study the effect of the interactions between components and quantify the impact of the multistage environment on the impellers’ performance.
Aerodynamic Analysis of a Multistage Centrifugal Compressor / D. Bonaiuti; A. Arnone; A. Milani; L. Baldassarre. - ELETTRONICO. - 6: Turbo Expo 2003, Parts A and B, Turbomachinery, Radial Turbomachinery Aerodynamics:(2003), pp. 741-753. (Intervento presentato al convegno ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference tenutosi a Atlanta, GA, USA nel 17-19 June) [10.1115/GT2003-38495].
Aerodynamic Analysis of a Multistage Centrifugal Compressor
ARNONE, ANDREA;
2003
Abstract
The aerodynamic analysis of a four–stage centrifugal compressor was performed by means of a three–dimensional multi stage CFD code. The whole operating range of the compressor was investigated and the critical elements affecting the choke and stall limit were identified. The isolated impellers were also analyzed separately and the flow field was compared to the one coming from the multistage analysis. This allowed us to study the effect of the interactions between components and quantify the impact of the multistage environment on the impellers’ performance.
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