Results 1 to 10 of about 301,901 (210)
A New Stall-Onset Criterion for Low Speed Dynamic-Stall [PDF]
Journal of Solar Energy Engineering, 2005 The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes. The underlying modeling philosophy was that it should be based on the best understanding, or description, of the associated physical phenomena.
Sheng, W. +2 more
openaire +4 more sources
Free-Stall Dimensions: Effects on Preference and Stall Usage [PDF]
Journal of Dairy Science, 2004 In 2 experiments, free-stall dimensions were examined to determine how they affected stall preference, usage, cleanliness, and milk production in Holstein dairy cattle. In experiment 1, stall width (112 or 132 cm) and stall length (229 and 274 cm from curb to wall) were compared in a 2 x 2 factorial arrangement of stall treatments using 15 individually
Cassandra B Tucker, Daniel M Weary
exaly +3 more sources
Numerical investigation of stall characteristics for winglet blade of a horizontal axis wind turbine [PDF]
E3S 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
Shanghai 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
Hangkong 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
Energies, 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]
Scientific 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
Fluids, 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
Journal 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
Energies, 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