Results 101 to 110 of about 4,272 (296)

Transonic Buffet Suppression by Airfoil Optimization

open access: yesAerospace
The main buffet suppression techniques of aircrafts include active and passive flow control, aiming to reduce the impact of the fluctuating loads on the airfoil. These techniques are remedies after the airfoil design. The buffet suppression is not always
Yiming Gong   +2 more
doaj   +1 more source

Analytical maps of aerodynamic damping as a function of operating condition for a compressor profile

open access: yes, 2006
In this paper analytical maps of aerodynamic damping for a two-dimensional compressor cascade (Standard Configuration 10) are presented. The maps are shown as contour plots of the aerodynamic damping as a function of operating condition.
McGhee, Andrew   +3 more
core   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

open access: yesAdvanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko   +10 more
wiley   +1 more source

Galloping characteristics of catenary positive feeder considering aerodynamic damping

open access: yesJournal of Measurement Science and Instrumentation
The purpose of this study is to analyze the galloping characteristics of the catenary positive feeder in fluctuating wind areas considering dynamic-wind angle of attack and aerodynamic damping.
LI Yanzhe   +5 more
doaj  

On Aerodynamic Roll Damping [Elektronisk resurs]

open access: yes, 2015
In this paper an approach for estimating aerodynamic roll damping is formulated. The approach utilizes wind tunnel tests and the concept of effective levers to relate roll induced apparent wind to a damping moment. Evaluation of the approach on a typical
Ovegård, Erik,   +2 more
core  

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud   +31 more
wiley   +1 more source

Numerical flutter analysis of turbomachinery bladings based on time-linearized, time-spectral and time-accurate simulations

open access: yes, 2011
Within the European research project FUTURE a transonic compressor rotor has been evaluated with respect to its aeroelastic stability. Based on the identical computational mesh different numerical approaches of the DLR flow solver TRACE and the ONERA ...
Mauffrey, Yann   +2 more
core  

Aerodynamic damping investigations of light dynamic stall on a pitching airfoil via modal analysis

open access: yes, 2020
This study presents an investigation of the aerodynamic damping of light dynamic stall phenomena on a pitching NACA 0012 airfoil via Dynamic Modal Decomposition (DMD) and Proper Orthogonal Decomposition (POD) techniques.
Raveh, Daniella E., Mallik, Wrik
core   +1 more source

A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials

open access: yesAdvanced Materials Interfaces, EarlyView.
Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav   +2 more
wiley   +1 more source

AERODYNAMIC DAMPING UNDER ALONG-WIND OSCILLATIONS

open access: yes, 1994
The streamwise oscillation of rectangular sectioned structures are usually caused by the turbulence of the incident flow but also by the resonance effect due to vortex sheddings from the structure in a low turbulent wind.
谷池, 義人   +2 more
core  

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