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Numerical investigation of stall characteristics for winglet blade of a horizontal axis wind turbine [PDF]

open access: yesE3S Web of Conferences, 2021
Wind energy is one of the renewable energy resources which is clean and sustainable energy and the wind turbine is used for harnessing energy from the wind. The blades are the key components of a wind turbine to convert wind energy into rotational energy.
Verma Shalini   +3 more
doaj   +1 more source

Numerical Simulation of Compressor Stall Recovery Control

open access: yesShanghai Jiaotong Daxue xuebao, 2021
In order to explore the influencing factors of the effectiveness and stability for stall recovery and its flow mechanism when the antisurge valve is opened quickly, the dynamic stall recovery processes are simulated and the recovery processes at ...
GAO Yuan, WU Yadong, OUYANG Hua
doaj   +1 more source

Review of the Study on High-angle-of-attack Flight Problems of Aircraft

open access: yesHangkong gongcheng jinzhan, 2022
The close combat in air battle is still inevitable in future.The accurate and agile nose-pointing capability at high-angle-of-attack is still essential and significant for fighter to survive and gain air superiority.According to the high-angle-of-attack ...
ZHANG Zijun   +3 more
doaj   +1 more source

On the Use of Modern Engineering Codes for Designing a Small Wind Turbine: An Annotated Case Study

open access: yesEnergies, 2021
While most wind energy comes from large utility-scale machines, small wind turbines (SWTs) can still play a role in off-grid installations or in the context of distributed production and smart energy systems. Over the years, these small machines have not
Francesco Papi   +3 more
doaj   +1 more source

Factors influencing axial compressor stalls [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2017
The article describes the problem regarding stalls in axial compressors, which are widely used in the engines of large and very large transportation aircrafts.
Piotr LASKOWSKI
doaj   +1 more source

Aerodynamic Characteristics of a Single Airfoil for Vertical Axis Wind Turbine Blades and Performance Prediction of Wind Turbines

open access: yesFluids, 2021
The design of wind turbines requires a deep insight into their complex aerodynamics, such as dynamic stall of a single airfoil and flow vortices. The calculation of the aerodynamic forces on the wind turbine blade at different angles of attack (AOAs) is ...
Samuel Mitchell   +2 more
doaj   +1 more source

Effects of gusty flow on aerodynamic performance of multirotor drone propellers in hovering flight

open access: yesJournal of Fluid Science and Technology, 2022
The effects of cross flow and fluctuating cross flow on the aerodynamic performance of multirotor drone propellers were investigated by using wind tunnel testing and numerical simulations.
Motonao MURAKAMI   +3 more
doaj   +1 more source

Investigation of Suction Flow Control on Centrifugal Compressor with Vaned Diffuser

open access: yesEnergies, 2022
In this study, the effect of suction flow control on a centrifugal compressor at operation and stall flow rates was investigated using computational fluid dynamics (CFD).
Suleyman Emre Ak, Sertac Cadirci
doaj   +1 more source

Experimental investigation on stall characteristics of contra-rotating compressor with variable speed ratios

open access: yesXibei Gongye Daxue Xuebao, 2021
By experiment at a low-speed large-scale axial contra-rotating compressor, the near stall points of 19 speed configurations were captured and the stall characteristics under different speed ratios were obtained successfully.
Wang Hao   +3 more
doaj   +1 more source

Method of Improving Stability of a Highly-Loaded Axial Compressor Stage by Coupling Different Casing Treatments [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Casing treatment is a powerful method for improving the stability of aircraft compressors. An optimized slot-type casing treatment was tested on the first rotor of a highly-loaded two-stage compressor, and the results showed that the casing treatment ...
Y. Chen, A. Lin, H. Zhang, W. Chu
doaj   +1 more source

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