Results 1 to 10 of about 105,358 (290)
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.
Beddoes +20 more
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Dynamic stall development [PDF]
Experiments in Fluids, 2013 Dynamic stall on an oscillating airfoil was investigated by a combination of surface pressure measurements and time-resolved particle image velocimetry. Following up on previous work on the onset of dynamic stall (Mulleners and Raffel in Exp Fluids 52(3):
Mulleners, Karen, Raffel, Markus
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Dynamic airfoil stall investigations [PDF]
, 1992 Experimental and computational investigations of the dynamic stall phenomenon continue to attract the attention of various research groups in the major aeronautical research laboratories. There are two reasons for this continued research interest. First,
Carr, L. W. +3 more
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Detection of vaneless diffuser rotating stall by means of dynamic pressure sensors and acoustic measurements [PDF]
E3S Web of Conferences, 2021 An accurate estimation of rotating stall is one of the key technologies for high-pressure centrifugal compressors. Several techniques have been proposed to detect the stall onset; inter alia, few dynamic pressure probes have been shown to not only ...
Romani Luca +6 more
doaj +1 more source
Experimental Study of Dynamical Airfoil and Aerodynamic Prediction
Actuators, 2022 Dynamic stall is a critical limiting factor for airfoil aerodynamics and a challenging problem for active flow control. In this experimental study, dynamic stall was measured by high-frequency surface pressure tapes and pressure-sensitive paint (PSP ...
Zheyu Shi +3 more
doaj +1 more source
Lithosphere, 2013 Recent seismic imaging of the mantle beneath western North America reveals complexities interpreted as structures ranging from plumes to lithospheric drips and slab fragments. A prominent high-velocity "curtain" beneath Idaho has been interpreted as a remnant of the subducted Farallon plate left dangling within the upper mantle since >40 Ma ...
Burkett, Erin, Gurnis, Michael
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Applied Sciences, 2020 The dynamic stall characteristics of rotor airfoil are researched by employing unsteady Reynolds-Averaged Navier-Stokes (RANS) method under oscillating freestream velocity conditions.
Qing Wang, Qijun Zhao
doaj +1 more source
Modeling dynamic loads on oscillating airfoils with emphasis on dynamic stall vortices
Wind Energy, 2021 We present a modified version of the ONERA dynamic stall model for improving the prediction of the unsteady forces and load overshoots generated by the shedding of dynamic stall vortices.
Ayman Mohamed, David H. Wood
doaj +1 more source
Time scales of dynamic stall development on a vertical-axis wind turbine blade
Flow, 2023 Vertical-axis wind turbines are excellent candidates to diversify wind energy technology, but their aerodynamic complexity limits industrial deployment.
Sébastien Le Fouest +2 more
doaj +1 more source
Dynamic Stall Measurements [PDF]
PAMM, 2009 AbstractForces acting statically on an airfoil in laminar flow are well known. Under turbulent conditions dynamic effects (like dynamic stall) take place. There are different theoretical models to describe dynamic stall, but very little experimental data.
Jörge Schneemann +2 more
openaire +1 more source