Development of secondary vortex structures in rotor wakes
WEBDec 6, 2021 · In the current work, the development of secondary vortex structures in the wake of a two-bladed rotor in hover conditions was investigated by combining stereoscopic particle image velocimetry measurements in different …
Aero-structural design of joined-wing aircraft based on high …
WEBApr 1, 2024 · In this study, a combination of the FE method and empirical formulas is used for the prediction of the structural mass of the joined-wing aircraft. The primary load-bearing structure is optimized and analyzed with the FE method, while the secondary structure mass is estimated using an empirical formula.
Current state and future trends in boundary layer control on lifting ...
WEBJul 14, 2022 · The possibilities of turbulent flow control over a wing by micro-blowing are investigated in detail in Refs., 95–98 both experimentally and computationally. The aim is to achieve improved aerodynamic performance, namely increased lift, reduced drag, and improved lift-to-drag ratio.
Unmanned aerial vehicles (UAVs): practical aspects, applications, …
WEBJan 16, 2023 · The controllers vary according to the UAV type such as flapping wing, single rotor, multirotor and fixed-wing. These UAVs are designed for certain operations and face different aerodynamics. UAV control encompasses an extensive range …
Effect of Static Rotor Eccentricity on End Winding Forces and …
WEBMar 30, 2021 · The qualitative formulas of the electromagnetic force on the end windings under static rotor eccentricity are derived in Section 2, while the finite element analysis and the experimental study are carried out in Section 3 and Section 4, respectively.
Separated and vortical flow in aircraft aerodynamics: a CFD …
WEBPrimary and secondary vortex systems are developed on both the inner and outer wing panels but remain far apart from each other. The secondary vortex under the inboard leading-edge vortex is obtained.
Morphing wing flaps for large civil aircraft: Evolution of a smart ...
WEBJul 1, 2021 · A secondary leverage (M 2) links B 4 (flap tip) to B 3 and is driven by the rotation of the actuator acting around the shaft A 2. The secondary leverage, hosted by block B 3, amplifies the torque around A 2 and makes B 4 rotate around hinge C, implementing the tab-like morphing.
The Effects of Crack Openings on Crack Initiation ... - Springer
WEBMay 7, 2016 · Jiang Zhu & Qihu Qian. 2822 Accesses. 151 Citations. Explore all metrics. Abstract. This paper experimentally investigates the cracking behavior of rock-like specimens containing artificial open flaws under uniaxial compressive loads.
(PDF) Wing Technique: A Novel Approach for the Detection of …
WEBJan 20, 2012 · This paper presents a novel approach based on the loci of instantaneous symmetrical components called "Wing Shape" which requires the measurement of three input stator currents and voltages to...
Secondary instability of crossflow vortices - Semantic Scholar
WEBFeb 17, 2005 · The present experiment conducted using a 45° swept wing in the low-disturbance Arizona State University Unsteady Wind Tunnel addresses the secondary instability in a detailed fashion under a variety of conditions.
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