The effects of turbulence modeling on dynamic stall
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DOI: 10.1007/s00707-025-04232-w
Abstract: A numerical investigation of the flow evolution over a pitching NACA 0012 airfoil incurring in deep dynamic stall phenomena is presented. The experimental data at Reynolds number Re = 135, 000 and reduced frequency k… read more here.
Keywords: turbulence modeling; dynamic stall; turbulence; effects turbulence ... See more keywords
Numerical investigations of dynamic stall characteristics with laminar-to-turbulence transition
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-021-0718-6
Abstract: The influence of laminar-to-turbulence transition of the laminar separation bubble (LSB) on the dynamic stall process of a pitching foil was investigated using transition SST k-ω turbulence model. As the LSB moves to the leading… read more here.
Keywords: laminar turbulence; transition; turbulence; turbulence transition ... See more keywords
Surrogate-based aerodynamic shape optimization for delaying airfoil dynamic stall using Kriging regression and infill criteria
Sign Up to like & getrecommendations! Published in 2021 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2021.106555
Abstract: Abstract The dynamic stall phenomenon is characterized by the formation of a leading-edge vortex, which is responsible for adverse aerodynamic forces and moments adversely impacting the structural strength and life of a system. Aerodynamic shape… read more here.
Keywords: optimization; dynamic stall; model; stall ... See more keywords
Study on dynamics of vortices in dynamic stall of a pitching airfoil using Lagrangian coherent structures
Sign Up to like & getrecommendations! Published in 2021 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2021.106706
Abstract: Abstract The evolution of vortex structure and mass transport process during dynamic stall of the two-dimensional pitching NACA0012 airfoil are studied in detail, using Lagrangian coherent structures (LCSs), and the nature of dynamic stall is… read more here.
Keywords: dynamic stall; process; airfoil; vortex ... See more keywords
On limit cycle oscillations of typical aeroelastic section with different preset angles of incidence at low airspeeds
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluids and Structures"
DOI: 10.1016/j.jfluidstructs.2017.07.008
Abstract: Abstract Helicopter blades and wind turbines are examples of aeroelastic systems that can reach high angles of attack and can vibrate due to the effects of the dynamic stall, thereby leading to fatigue problems or… read more here.
Keywords: preset angles; typical aeroelastic; preset; dynamic stall ... See more keywords
Aeroelastic responses of airfoil under dynamic stall forced to oscillate by cyclic pitch input
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115366
Abstract: Abstract The helicopter blades are involved in a nonlinear aeroelastic system in which unsteady dynamic stall flow and flexible structure are coupled. This problem can be reduced to a 2D aeroelastic problem in which airfoil… read more here.
Keywords: aeroelastic responses; system; frequency; dynamic stall ... See more keywords
Numerical study of free stream turbulence effects on dynamic stall of pitching tubercled wings
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DOI: 10.1063/5.0208369
Abstract: The feasibility of a tubercled leading-edge in dynamic stall control has been validated, and the impacts of an upstream cylinder wake have already been discussed in the previous research. However, the influences of wake coherent… read more here.
Keywords: dynamic stall; free stream; study free; turbulence ... See more keywords
Study on dynamic stall control strategy based on dual synthetic jets
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DOI: 10.1063/5.0236248
Abstract: Dynamic stall has always been a key problem restricting the improvement of aircraft maneuverability. In this paper, the application potential of dual synthetic jets (DSJ) technology in dynamic stall control is studied. The influence of… read more here.
Keywords: process; dynamic stall; control; stall control ... See more keywords
Numerical investigation on flow separation control of dynamic stall over an airfoil using a fluidic oscillator
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DOI: 10.1063/5.0268268
Abstract: During the operation of rotorcraft and wind turbines, dynamic stall can lead to severe aerodynamic issues, including drag surge, lift loss, and unsteady loading. To address these challenges, this study proposes a novel active flow… read more here.
Keywords: dynamic stall; fluidic oscillator; airfoil; control ... See more keywords
Parameter analysis of dual synthetic jets control for rotor airfoil dynamic stall under unsteady freestream
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Fluids"
DOI: 10.1063/5.0281017
Abstract: To suppress the dynamic stall phenomenon of helicopter rotors, a numerical simulation study was conducted on the unsteady aerodynamic characteristics of dual synthetic jets (DSJ) control under unsteady freestream. A moving-embedded grid method was employed… read more here.
Keywords: freestream; dynamic stall; airfoil; control ... See more keywords
Numerical study of an aeroelastic energy harvester with operational wind envelope expanded by shape-memory elements and dynamic stall
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DOI: 10.1088/1361-665x/ae1d38
Abstract: A numerical study on the operational envelope enhancement of a pitch-and-plunge airfoil energy harvester leveraging the synergistic effects of superelastic shape-memory alloy (SMA) hysteresis and nonlinear aerodynamic loading related to dynamic stall is presented. Piezoelectric… read more here.
Keywords: dynamic stall; energy; shape; shape memory ... See more keywords