Investigation of Reynolds number effects on flow stability of a transonic compressor using a dynamic mode decomposition method
Z Li, J Zhou, X Zhu, J Zhou, T Pan - Aerospace Science and Technology, 2024 - Elsevier
With the continuous increase in aircraft flight altitude, low Reynolds number effects in high-
altitude environments significantly impact the stability of compressor operation. In this study …
altitude environments significantly impact the stability of compressor operation. In this study …
Analysis on spike-type rotating stall in transonic axial compressor by dynamic mode decomposition
S Moru, Y Bo, W Yueheng, Z Rui, L Zixuan - Aerospace Science and …, 2022 - Elsevier
The spike-type rotating stall in axial compressor is one of the major causes for the
aeroengine failure. The evolution of the flow structures, especially in the rotor tip region, is …
aeroengine failure. The evolution of the flow structures, especially in the rotor tip region, is …
Experimental mode decomposition investigation on 3-stage axial flow compressor stall phenomena using aeroacoustics measurements
D Guan, Y Liu, D Zhao, J Du, X Dong, D Sun - Aerospace Science and …, 2023 - Elsevier
Safely operating compressors is quite critical. Rotating stall is highly undesirable and affects
negatively the performance and stability of aero-engine compressors. It is important to …
negatively the performance and stability of aero-engine compressors. It is important to …
[HTML][HTML] The balanced mode decomposition algorithm for data-driven LPV low-order models of aeroservoelastic systems
A novel approach to reduced-order modeling of high-dimensional systems with time-varying
properties is proposed. It combines the problem formulation of the Dynamic Mode …
properties is proposed. It combines the problem formulation of the Dynamic Mode …
[HTML][HTML] Experimental investigation of characteristics of instability evolution in a centrifugal compressor
The stable range of operation for the centrifugal compressor significantly influences the
dynamic, economic, and environment-friendly characteristics of power systems. A deep …
dynamic, economic, and environment-friendly characteristics of power systems. A deep …
Numerical study of the coherent characteristics of the blade tip of a micro centrifugal compressor and its application in a new unsteady casing-treatment experiment
H Zhang, Y Yang, C Xu, S Hong, G Huang - Physics of Fluids, 2024 - pubs.aip.org
The tip-leakage vortex, as the dominant coherent structure of the blade tip of a compressor,
is an important source of losses in centrifugal compressor rotors; it limits the stall margin and …
is an important source of losses in centrifugal compressor rotors; it limits the stall margin and …
Performance investigation of Wells turbine for wave energy conversion with stall cylinders
K Geng, C Yang, C Hu, Y Li, X Shi - Ocean Engineering, 2021 - Elsevier
The wave energy conversion of oscillation water column (OWC) systems is limited by the
narrow range of efficient operation of Wells turbines. Effective control methods are critical to …
narrow range of efficient operation of Wells turbines. Effective control methods are critical to …
[HTML][HTML] Investigation of flow unsteadiness in a highly-loaded compressor cascade using a dynamic mode decomposition method
AN Guangyao, WU Yanhui, L **hua, C Zhiyang… - Chinese Journal of …, 2022 - Elsevier
Unsteady flow in the hub endwall region has long been a hot topic in the turbomachinery
community. However important it is to the performance of the whole engine, the coherent …
community. However important it is to the performance of the whole engine, the coherent …
DES of a Slingsby Firefly aircraft: Unsteady flow feature extraction using POD and HODMD
A Corrochano, AF Neves, B Khanal… - Journal of Aerospace …, 2022 - ascelibrary.org
In this paper, higher-order dynamic mode decomposition (HODMD) was applied to find the
main patterns and frequencies of a transient aerodynamic flow field when an aircraft wing …
main patterns and frequencies of a transient aerodynamic flow field when an aircraft wing …
Roles of recirculating bubble on the performance of centrifugal compressors
Y Lin, T Fan, X Zheng - Aerospace Science and Technology, 2021 - Elsevier
Research works over the years have identified a recirculating bubble locating at impeller
shroud in centrifugal compressor operating under off-design conditions. However, its roles …
shroud in centrifugal compressor operating under off-design conditions. However, its roles …