Results 61 to 70 of about 4,618,854 (237)
Dynamic Stall Mechanisms of Pitching Airfoil: IDDES Study Across Different Mach Numbers
Applied SciencesThis study investigates dynamic stall mechanisms of a pitching NACA 0012 airfoil through high-fidelity computational fluid dynamics (CFD) simulations.
Simeng Jing +4 more
doaj +1 more source
Study on the Active Control of the Dynamic Stall of Rotor Airfoils Based on Plasma Excitation
AerospaceThis paper studies a rotor dynamic stall control method using an alternating current dielectric barrier discharge (AC DBD) plasma actuator through numerical simulation methods.
Weihong Kong, Keyi Guo, You Li
doaj +1 more source
Numerical investigation of dynamic stall of an oscillating aerofoil
, 1994 The flow structure around an NACA 0012 aerofoil oscillating in pitch around the quarter-chord is numerically investigated by solving the two-dimensional compressible N-S equations using a special matrix-splitting scheme.
马延文 +3 more
core +1 more source
Experimental Investigation Of Air Jets To Control Shock-Induced Dynamic Stall
, 2013 This paper shows experimental results for dynamic stall control on a dynamically pitching OA209 airfoil at Mach 0.5, with Re=1.9×106 and Re=0.85×106. The control was by supersonic constant blowing on the suction side of the airfoil.
Richter, Kai +3 more
core +1 more source
Research on Simulation Method of Propeller Power in the Model Free-flight Test
Hangkong gongcheng jinzhan, 2020 It is necessary to simulate effects of propeller power accurately, when the stall performance of propeller aircraft is simulated by scaled free-flight test.
ZHANG Jiaqi, XI Liangliang, WEN Qing
doaj +1 more source
Axioms, 2023 The objective of this article is to characterize an aeroelastic system in terms of its dynamical behavior, which could be either chaotic or periodic before, during, and after achieving the flutter velocity.
Michelle F. Westin +4 more
doaj +1 more source
Simulating variable pitch crossflow water turbines: A coupled unsteady ONERA-EDLIN model and streamtube model [PDF]
, 2013 This article describes a new method for simulating unsteady hydrodynamics forces and moments on the blades of a crossflow ‘Darrieus’ turbine with active pitch variation.
J.A. Astolfi +7 more
core +1 more source
Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations
Shock and Vibration, 2016 Stall flutter is an aeroelastic phenomenon resulting in unwanted oscillatory loads on the blade, such as wind turbine blade, helicopter rotor blade, and other flexible wing blades.
Nailu Li +4 more
doaj +1 more source
Rotating Wind Dynamic Stall: State of the Art and Future Directions
, 2020 Dynamic stall has been studied for more than fifty years; in the last decade significant advances have been accomplished in the understanding, prediction, modeling and control of dynamic stall on rotors.
Jain, Rohit +4 more
core
, 2020 This paper explores passive flow control via leading-edge (LE) slats to reduce the dynamic stall (DS) phenomenon and related blade-wake interaction in an H-Darrieus type vertical axis wind turbine (VAWT) operating under low wind speed conditions.
Tariq Ullah +4 more
semanticscholar +1 more source