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Analysis of generalized compressor characteristics on surge phenomena in axial compressors | ||
Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
مقاله 5، دوره 10، شماره 2 - شماره پیاپی 20، تیر 2021، صفحه 337-344 اصل مقاله (714.94 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jcarme.2020.5182.1639 | ||
نویسندگان | ||
Adnan Maqsood* 1؛ Muhammad Kamran Khan Tareen1؛ Rizwan Riaz1؛ Laurent Dala2 | ||
1Research Center for Modeling and Simulation, National University of Sciences and Technology, H–12 Campus, Islamabad 44000, Pakistan | ||
2Department of Mechanical & Construction Engineering, Northumbria University, Newcastle, United Kingdom | ||
تاریخ دریافت: 13 اردیبهشت 1398، تاریخ بازنگری: 17 فروردین 1399، تاریخ پذیرش: 23 فروردین 1399 | ||
چکیده | ||
The paper discusses the effect of compressor characteristic on surge phenomena in axial flow compressors. Specifically, the effect of nonlinearities on the compressor dynamics is analyzed. For this purpose, generalized multiple time scales method is used to parameterize equations in amplitude and frequency explicitly. The pure surge case of the famous Moore-Greitzer model is used as the basis of the study. The compressor characteristic used in the Moore-Greitzer model is generalized to evaluate the effect of the parameters involved. Subsequently, bifurcation theory is used to study the effect of nonlinear dynamics on surge behavior. It has been found that the system exhibits supercritical Hopf bifurcation under specific conditions in which surge manifests as limit cycle oscillations. Key parameters have been identified in the analytical solution which govern the nonlinear dynamic behavior and are responsible for the existence of limit cycle oscillations. Numerical simulations of the Moore-Greitzer model are carried out and found to be in good agreement with the analytical solution | ||
کلیدواژهها | ||
Surge؛ Multiple time scales (MTS)؛ Limit cycle oscillations (LCOs)؛ Moore-Greitzer model؛ Bifurcations | ||
مراجع | ||
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