Simulation of Surge and Stall for Aero Engine Compressor Based on Entropy

Authors

Pi Jun, General Aviation College, Civil Aviation University of China, Tianjin 300300, China;
Yongchao Qiu, General Aviation College, Civil Aviation University of China, Tianjin 300300, China;
Zhiwei Hu, General Aviation College, Civil Aviation University of China, Tianjin 300300, China;
Wu Wei, General Aviation College, Civil Aviation University of China, Tianjin 300300, China;

Abstract

Abstract: The mature model NASA Rotor37 is used to simulate the transition of the compressor’s operation from the steady state to the non-steady state of stall and surge using the simulation software CFX. The transition is analyzed and researched based on the theory of thermodynamics entropy and sample entropy to provide a basis for the fault diagnosis of stall and surge. The two thermodynamic entropy parameters of average specific entropy value and the isentropic efficiency are found by the analysis changing abnormally in the event of stall. The values of the sample entropy obtained by calculation using the static pressure sequence signal at the receiver reach the minimum near the operation point of stall. The goal of providing an important basis for the fault diagnosis of the compressor stall and surge is achieved.

Recommended Citation

Jun, Pi; Qiu, Yongchao; Hu, Zhiwei; and Wei, Wu (2019) "Simulation of Surge and Stall for Aero Engine Compressor Based on Entropy," Journal of System Simulation: Vol. 30: Iss. 2, Article 23.
DOI: 10.16182/j.issn1004731x.joss.201802023
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss2/23

First Page

551

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201802023

Last Page

559

CLC

TP391.9

Recommended Citation

Pi Jun, Qiu Yongchao, Hu Zhiwei, Wu Wei. Simulation of Surge and Stall for Aero Engine Compressor Based on Entropy[J]. Journal of System Simulation, 2018, 30(2): 551-559.

DOI

10.16182/j.issn1004731x.joss.201802023