Numerical Study on Local Entropy Production Mechanism of a Contra-Rotating Fan [PDF]
Entropy, 2023 Contra-rotating fans (CRFs) have garnered significant attention due to their higher power-to-weight ratio compared to traditional fans; however, limited focus has been given to the localization and development of local aerodynamic losses.
Xingyu Jia, Xi Zhang
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Design of a two spool contra-rotating turbine for a turbo-fan engine
Propulsion and Power Research, 2020 Contra-rotating turbines offer enhanced performance over their conventional co-rotating configurations. In addition, vaneless contra-rotating turbine stages offer lesser stage length along with improved performance.
Prathapanayaka Rajeevalochanam +3 more
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Effect of the Radial Velocity Distribution on the Loss Generation of a Contra-Rotating Fan in a Ventilation System [PDF]
Entropy, 2023 Quantification of the loss generation of ducted contra-rotating fan (CRF) blades is difficult to achieve, since there are no guide vanes between rotors.
Xingyu Jia, Xi Zhang, Kui Guo, Xuehui Li
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Coupling analysis of contra-rotating fan interstage pressure pulsation and blade vibration based on wavelet reconstruction. [PDF]
PLoS ONE, 2021 In recent years, the flow characteristics research of the interstage region in counter-rotating axial fans in terms of fluid dynamics has attracted much attention.
Xinzhe Zhang +4 more
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Quasi-unsteady Flow Field Computation and Performance Prediction of Contra-Rotating Fan [PDF]
MATEC Web of Conferences, 2020 Discussion of numerical flow field prediction with two rotor-stator interface models is presented in the paper. The mixing plane and harmonic models are applied to contra rotating fan. Both models confirmed good performance and high power density leading
Červenka Bystrík +2 more
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Frontiers in Physics, 2023 Introduction: In the present paper, experiments for a contra-rotating axial fan have been conducted to investigate the influences of the fan parameters including axial distance, blade number, blade pattern and blade thickness on the performance and noise
Yanjie Zhao +4 more
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Numerical simulation of unsteady aerodynamic interactions of contra-rotating axial fan. [PDF]
PLoS ONE, 2018 This paper describes the investigations performed to better understand unsteady effect that develop in a contra-rotating axial fan. More specifically, this study focuses on rotor-rotor interactions effects on unsteady characteristic and blade aerodynamic
Hengxuan Luan +2 more
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Experimental and numerical investigation of endwall flow control through air injection in a contra rotating fan [PDF]
Scientific ReportsThis study reports on an experimental and numerical investigation of tip leakage flow control and its effects on the endwall flow structure and stall evolution of a contra-rotating fan.
Maryam Sadoddin, Hossein Khaleghi
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Advances in Mechanical Engineering, 2016 The contra-rotating fan is an electromechanical device in which electromagnetic force and aerodynamic force coordinate together. Its operation process is affected by multiple factors and is also coupled with multiple variables. In order to further reveal
Qian Wang, Dawei Meng
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Effect of axial spacing on rotating stall performance of FBCDZ-10-No20 contra-rotating fan [PDF]
Meitan kexue jishu, 2023 Mining contra-rotating fan are prone to rotational stall when it operates at low flow rates, which seriously affects the operational stability. The unsteady flow in the full flow passage of a FBCDZ-10-No20 contra-rotating fan at five axial spacings was ...
Qingguang CHEN +3 more
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