Dynamical system analysis of unstable flow phenomena in centrifugal blower

David Garcia; Matthew Stickland; Grzegorz Pawel Liśkiewicz

doi:10.1515/en-2015-0036

Dynamical system analysis of unstable flow phenomena in centrifugal blower

David Garcia, Matthew Stickland, Grzegorz Pawel Liśkiewicz

Mechanical And Aerospace Engineering

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7 Citations (Scopus)

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Abstract

Methods of dynamical system analysis were employed to analyze unsteady phenomena in a centrifugal blower. Pressure signals gathered at different control points were decomposed into their Principal Components (PCs) by means of Singular Spectrum Analysis (SSA). Certain number of PCs was considered in the analysis based on their statistical correlation. Projection of the original signal onto its PCs allowed to draw the phase trajectory that clearly separated non-stable blower working conditions from its regular operation.

Original language	English
Pages (from-to)	332-342
Number of pages	11
Journal	Open Engineering
Volume	5
Issue number	1
DOIs	https://doi.org/10.1515/en-2015-0036
Publication status	Published - 25 Sept 2015
Event	11th International Symposium on Compressor and Turbine Flow Systems Theory and Application Areas - Lodz, Poland Duration: 20 Oct 2014 → 23 Oct 2014

Keywords

singular spectrum analysis (SSA)
nonlinear dynamics
statistical pattern recognition
compressors
surge

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10.1515/en-2015-0036Licence: CC BY-NC-ND 4.0

Garcia-etal-Open-Eng-2015-Dynamical-system-analysis-of-unsteady-flow-phenomena-in-centrifugal-blower
© 2015 D. Garcia et al., licensee De Gruyter Open.
Final published version, 3.58 MBLicence: CC BY-NC-ND 4.0

Cite this

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abstract = "Methods of dynamical system analysis were employed to analyze unsteady phenomena in a centrifugal blower. Pressure signals gathered at different control points were decomposed into their Principal Components (PCs) by means of Singular Spectrum Analysis (SSA). Certain number of PCs was considered in the analysis based on their statistical correlation. Projection of the original signal onto its PCs allowed to draw the phase trajectory that clearly separated non-stable blower working conditions from its regular operation.",

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AB - Methods of dynamical system analysis were employed to analyze unsteady phenomena in a centrifugal blower. Pressure signals gathered at different control points were decomposed into their Principal Components (PCs) by means of Singular Spectrum Analysis (SSA). Certain number of PCs was considered in the analysis based on their statistical correlation. Projection of the original signal onto its PCs allowed to draw the phase trajectory that clearly separated non-stable blower working conditions from its regular operation.

KW - singular spectrum analysis (SSA)

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KW - statistical pattern recognition

KW - compressors

KW - surge

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T2 - 11th International Symposium on Compressor and Turbine Flow Systems Theory and Application Areas

Y2 - 20 October 2014 through 23 October 2014

ER -

Dynamical system analysis of unstable flow phenomena in centrifugal blower

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