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Experimental Characterization of the Hydrodynamic Interactions between a Freely Rising Bubble and a Settling Particle. [PDF]
LangmuirOutokesh M +2 more
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Mechanistic coupling of enzymatic activities at the replisome. [PDF]
J Biol ChemWelikala MU +3 more
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Evaluating Dynamic Stall-Onset Criteria for Mixed and Trailing-Edge Stall
AIAA Journal, 2022We evaluate two leading-edge-based dynamic stall-onset criteria (namely, the maximum magnitudes of the leading-edge suction parameter and the boundary enstrophy flux) for mixed and trailing-edge stall. These criteria have been shown to successfully predict the onset of leading-edge stall at Reynolds numbers of [Formula: see text], where the leading ...
Sarasija Sudharsan +2 more
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Dynamic stall simulation problems
Guidance, Control and Flight Mechanics Conference, 1970Dynamic airfoil stall simulation in wind tunnels, considering pitch rate, Reynolds number, oscillation and test equipment ...
LARS E. ERICSSON, J. PETER REDING
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Investigation of dynamic stall onset
Aerospace Science and Technology, 2006Abstract In a 2003 test campaign in the DLR-VAG test stand unsteady pressure distributions during dynamic stall have been measured on a 2D-wing model with OA312 airfoil section. To investigate the effect of transition on dynamic stall onset different tripping devices have been fixed at the leading edge of the model.
Geissler, Wolfgang, Haselmeyer, Hartmut
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Compressibility effects on dynamic stall
Progress in Aerospace Sciences, 1996Abstract Dynamic stall delay of flow over airfoils rapidly pitching past the static stall angle has been studied by many scientists. However, the effect of compressibility on this dynamic stall behavior has been less comprehensively studied. This review presents a detailed assessment of research performed on this subject, including a historical ...
Carr, L.W., Chandrasekhara, M.S.
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Influence of Rotation on Dynamic Stall
Proceedings of the AHS International 68th Annual Forum and Technology Display, 2012A computational investigation of the effect of rotation on two dimensional deep dynamic stall has been undertaken, showing that the effect of rotation is to reduce the severity of the pitching moment peak and cause earlier reattachment of the flow.
Gardner, Anthony Donald, Richter, Kai
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Dynamic stall on a supercritical airfoil
Aerospace Science and Technology, 2005Summary: For the present investigations of dynamic stall a supercritical airfoil was chosen. This new airfoil designed by DLR will be used in dynamic stall control research activities (project ADASYS) planned for the near future: the leading edge portion of the airfoil will be drooped down dynamically to improve dynamic stall characteristics on the ...
Geißler, W., Dietz, G., Mai, H.
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Dynamic Stall and Aerodynamic Damping
Journal of Solar Energy Engineering, 1998Riso̸ has developed a dynamic stall model that is used to analyze and reproduce open air blade section measurements as well as wind tunnel measurements. The dynamic stall model takes variations in both angle of attack and flow velocity into account. The paper gives a brief description of the dynamic stall model and presents results from analyses of ...
Flemming Rasmussen +2 more
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On the Mechanism of Dynamic Stall
Journal of the American Helicopter Society, 1972The sequence of events comprising dynamic stall of an airfoil is discussed, with emphasis on the role of the leading edge laminar separation bubble and shed vortex. A simple bubble model, based on a combination of theoretical and experimental investigations, is used to discuss the events prior to the shedding of the vortex, and provides the basis for ...
Wayne Johnson, Norman D. Ham
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