Results 271 to 280 of about 2,641 (299)

On precise in-duct measurement of fan noise

The Journal of the Acoustical Society of America, 1989
Measurement of fan noise requires extremely careful control of a multiple of variables—including fan operating point and test system configuration—to obtain useful results. Frequently, fan noise measurements are contaminated by unrecognized fan or test system changes and spurious noise sources. A new fan test system was designed to eliminate extraneous
openaire   +1 more source

Aerodynamic analysis and modeling of coaxial ducted fan aircraft with the ceiling effect

Engineering Applications of Computational Fluid Mechanics, 2021
Bin Xu, Tianfu Ai, Changle Xiang
exaly  

Development of Tricopter with Duct Fan

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec), 2016
Shun ITO, Manabu YAMADA
openaire   +1 more source

Aerodynamic performance assessment of a ducted fan UAV for VTOL applications

Aerospace Science and Technology, 2020
Shuanghou Deng
exaly  

Adaptive fault-tolerant control of a novel ducted-fan aerial robot against partial actuator failure

Aerospace Science and Technology, 2022
Bin Xu, Shouxing Tang, Changle Xiang
exaly  

MPC based compound flight control strategy for a ducted fan aircraft

Aerospace Science and Technology, 2020
Yuanqing Xia, Tayyab Manzoor, Zhongqi Sun   +2 more
exaly  

A comprehensive evaluation of ducted fan hybrid engines integrated with fuel cells for sustainable aviation

Renewable and Sustainable Energy Reviews, 2023
Silong Zhang, Zhixing Ji, Zhixing Ji
exaly  

Ducted propellers and fans

1996
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Double Ducted Fan

2019
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Evaluation of quad ducted‐fan helicopter

International Journal of Intelligent Unmanned Systems, 2013
Masafumi Miwa
exaly