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Stator re-stagger optimization in multistage axial compressor
Propulsion and Power Research, 2021 As a widely applied technique in multistage axial compressors, variable stator vanes (VSV) can flexibly rematch the blade rows to fulfil a variety of aerodynamic performance requirements, such as high efficiency and wide surge margin. The purpose of this
Jinguang Yang +4 more
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Experimental investigation of the tip leakage flow in a low-speed multistage axial compressor [PDF]
Science Progress, 2020 Casing pressure measurements and Stereoscopic Particle-Image Velocimetry (SPIV) measurements are used together to characterize the behavior of the rotor tip leakage flow at both the design and near-stall conditions in a low-speed multistage axial ...
Jun Li, Jun Hu, Chenkai Zhang
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Case Studies in Thermal Engineering, 2021 The compressor global geometric model including the endwall and the blade is parameterized based on a directly manipulated free-form deformation (DFFD) approach.
Hang Xiang, Jiang Chen
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Off-line washing effectiveness on a multistage axial compressor [PDF]
E3S Web of Conferences, 2021 The interaction between gas turbines and airborne particles determines detrimental effects on the performance, efficiency, and reliability of the power unit.
Aldi Nicola +9 more
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Experimental Assessment of Fouling Effects in a Multistage Axial Compressor [PDF]
E3S Web of Conferences, 2020 The study of the adhesion of micro sized particles to gas turbine internal surfaces, commonly known as gas turbine fouling, has gained increasing attention in the last years due to its dramatic effect on machine performance and reliability.
Casari Nicola +4 more
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The New Performance Calculation Method of Fouled Axial Flow Compressor [PDF]
The Scientific World Journal, 2014 Fouling is the most important performance degradation factor, so it is necessary to accurately predict the effect of fouling on engine performance. In the previous research, it is very difficult to accurately model the fouled axial flow compressor.
Huadong Yang, Hong Xu
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Impact Investigation of Stator Seal Leakage on Aerodynamic Performance of Multistage Compressor
Frontiers in Energy Research, 2021 In this paper, a numerical model based on the mass flow rate of seal leakage is presented, and a 3D numerical method of a multistage axial compressor with good engineering practicability is established.
Qi Wang +7 more
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The Investigation of the Stability for Multistage Axial Compressors [PDF]
Volume 1: Aircraft Engine; Turbomachinery, 1985 The “actuator-delay-volume” is used as a physical model for stages of compressors instead of “actuator-lumped volume” model to predict the stability of multistage compressors. The stall line of a multistage compressor is predicted with these two models respectively.
Diyi Tang, Wenlan Li, Mengzi Cong
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Analysis Methods for Aerodynamic Instability Detection on a Multistage Axial Compressor
International Journal of Aerospace Engineering, 2021 In order to detect the aerodynamic instability of a multistage axial compressor more accurately and earlier, the harmonic Fourier mean amplitude analysis method and heterotopic variance analysis method are developed.
Baofeng Tu +4 more
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Flow Field Diagnosis in Multistage Axial Compressors [PDF]
Volume 1: Turbomachinery, 1996 A mathematical model is developed for the flow field diagnosis problem in multistage axial compressors. In view of the ill-posedness of the diagnostic problem, an effective measure is adopted to transfer the diagnostic problem into a variational problem which is solved by a regularization method. Two numerical results demonstrate the rationality of the
J. Liu, Z.-C. Zhang, D.-J. Ye
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