Results 81 to 90 of about 3,074,154 (195)

Unsteady Aerodynamics of Delta Kites for Airborne Wind Energy Under Dynamic Stall Conditions

Wind Energy
Three unsteady aerodynamic tools at different levels of fidelity and computational cost were used to investigate the unsteady aerodynamic behavior of a delta kite applied to airborne wind energy.
I. Castro‐Fernández, R. Cavallaro, R. Schmehl, G. Sánchez‐Arriaga   +3 more
doaj   +1 more source

Sensitivity of Dynamic Stall Models to Dynamic Excitation on Large Flexible Wind Turbine Blades in Edgewise Vibrations

Energies
Present studies are specifically aimed at investigating the sensitivity of different dynamic stall models when exposed to various excitation frequencies. The investigations are targeted at blade edgewise vibrations.
Galih Bangga
doaj   +1 more source

Dynamic Stall Control on the Wind Turbine Airfoil via a Co-Flow Jet

Energies, 2016
Dynamic stall control of a S809 airfoil is numerically investigated by implementing a co-flow jet (CFJ). The numerical methods of the solver are validated by comparing results with the baseline experiment as well as a NACA 6415-based CFJ experiment ...
He-Yong Xu, Chen-Liang Qiao, Zheng-Yin Ye   +2 more
doaj   +1 more source

Analysis of Dynamic Stall on a Pitching Airfoil with Spectral Proper Orthogonal Decomposition [PDF]

, 2022
The onset of dynamic stall on helicopters pitching blades produces massive excursions in the aerodynamic loads that may couple with structure dynamics and cause its earlier failure.
Avanzi, Filippo
core  

Granzyme B PET Imaging Reveals Lgmn+ Macrophage‐Mediated Immune Evasion and Guides Immunotherapy in EGFR‐TKI‐Resistant NSCLC

Advanced Science, EarlyView.
Graphical illustration of 68Ga‐GZB PET/CT imaging reveals immune dynamics post‐EGFR‐TKI resistance in NSCLC; Lgmn+ macrophages‐derived Lgmn‐containing extracellular vesicles inhibit glycolysis, induce CD8+ T cell exhaustion, and targeting Lgmn restores immunotherapy sensitivity.
Dongliang Wang, Wenqin Luo, Qiufang Liu, Wenxuan Tang, Bin Zhu, Jiwei Chen, Qian Zhou, Shuang Tang, Xiaoping Xu, Shaoli Song   +9 more
wiley   +1 more source

Compressibility Effects on Dynamic Stall [PDF]

, 1996
Invited Paper, Progress in Aerospace Sciences, Vol. 32, pp. 523-576, 1996.Dynamic stall delay of flow over airfoils rapidly pitching past the static stall angle has been studied by many scientists.
Carr, L.W., Chandrasekhara, M.S.
core   +1 more source

Numerical Investigation on the Evolution Process of Different Vortex Structures and Distributed Blowing Control for Dynamic Stall Suppression of Rotor Airfoils

Actuators
The influencing characteristic for the evolution mechanism of a dynamic stall vortex structure and distributed blowing control on rotor airfoils was investigated. Based on the moving-embedded grid method, the finite volume scheme, and Roe’s FDS scheme, a
Guoqiang Li, Shihe Yi, Binbin Li, Xin Zhang   +3 more
doaj   +1 more source

Bifurcation analysis of surge and rotating stall in the Moore-Greitzer compression system [PDF]

, 2002
A simple compression system model, described by a set of three ordinary nonlinear differential equations (the Moore-Greitzer model) is studied using bifurcation analysis to give a qualitative understanding of the presence of surge and rotating stall ...
Kullmann, L, Champneys, AR, Hos, C
core  

Stimulation of OGG1 Enhances Oxidative DNA Damage Repair and Protects Against Acute Liver Failure by Acetaminophen

Advanced Science, EarlyView.
Chemical switching of OGG1 by CMM‐98 accelerates oxidative DNA damage repair and enhances hepatocyte resilience during acetaminophen‐induced acute liver injury. By promoting efficient processing of OGG1‐generated repair intermediates, CMM‐98 reduces oxidative damage, preserves cellular integrity, and protects against acute liver failure, identifying ...
Zhenjun Zhao, Rahul Upadhyay, Alice Eddershaw, Chenchen Wang, Yudong Zhao, Olov Wallner, Jinhye Ryu, Nayere Taebnia, Heather Gildie, Emma Scaletti‐Hutchinson, Jonathan R. Davies, Nicole Ziegler, Andreas Krämer, Samantha C. Robinson, Marek Varga, Karolina Singerova, Zuzanna Szaruga, Elisée Wiita, İrşil Güneş, Sheila S. David, Stefan Knapp, Aimo Kannt, Miguel de Vega, Pål Stenmark, Volker M Lauschke, Maurice Michel   +25 more
wiley   +1 more source

μ-PIV and ELDV wind tunnel investigations of the laminar separation bubble above a helicopter blade tip [PDF]

, 2005
Detailed studies of the boundary layer profile and the characteristics of the flow velocity distribution close to the leading edge of a helicopter blade profile were conducted using the embedded laser doppler velocimetry (ELDV) and stereo-PIV.
Geissler, Wolfgang, Rondot, C., Berton, E., Raffel, Markus, Favier, D., Nsimba, M., Maresca, C.   +6 more
core