Identify the Rotating Stall in Centrifugal Compressors by Fractal Dimension in Reconstructed Phase Space
Abstract
:1. Introduction
2. Numerical Simulations of the Rotating Stall in the Centrifugal Impeller
2.1. The Model and Numerical Method
2.2. The Model and Numerical Method
3. Phase Space Reconstruction of Pressure Time Series
3.1. Phase Space Reconstruction
3.2. C–C Method
3.3. Pressure Time Series of the Sampling Points
3.4. Phase Space Reconstruction in Pre- and Post- Rotating stalls
3.4.1. Dynamics Analysis of the Pre- and Post- Rotating stall by Phase Space Reconstruction
3.4.2. The Fractal Dimension in the Reconstructed Phase Space in the Post-Rotating Stall
4. Phase Space Reconstruction of the Pressure Time Series at Different Locations
4.1. Parameters for Phase Space Reconstruction at Different Locations
P2 | P3 | P4 | P5 | |
---|---|---|---|---|
12 | 12 | 11 | 10 | |
15 | 12 | 14 | 10 | |
2.25 | 2.00 | 2.27 | 2.00 |
4.2. Phase Space Reconstruction for Pressure Time Series at Different Locations
4.3. Fractal Dimension in the Reconstructed Phase Space for Pressure Time Series at Different Locations
4.3.1. Fractal Dimension in the Reconstructed Phase Space at Circumference Locations
4.3.2. Fractal Dimensions in Reconstructed Phase Space at Different Radial Locations
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
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Wang, L.; Zhang, J.; Zhang, W. Identify the Rotating Stall in Centrifugal Compressors by Fractal Dimension in Reconstructed Phase Space. Entropy 2015, 17, 7888-7899. https://doi.org/10.3390/e17127848
Wang L, Zhang J, Zhang W. Identify the Rotating Stall in Centrifugal Compressors by Fractal Dimension in Reconstructed Phase Space. Entropy. 2015; 17(12):7888-7899. https://doi.org/10.3390/e17127848
Chicago/Turabian StyleWang, Le, Jiazhong Zhang, and Wenfan Zhang. 2015. "Identify the Rotating Stall in Centrifugal Compressors by Fractal Dimension in Reconstructed Phase Space" Entropy 17, no. 12: 7888-7899. https://doi.org/10.3390/e17127848