Results 71 to 80 of about 2,612 (267)
Wake-Model Effects on Induced Drag Prediction of Staggered Boxwings
Aerospace, 2018 For staggered boxwings the predictions of induced drag that rely on common potential-flow methods can be of limited accuracy. For example, linear, freestream-fixed wake models cannot resolve effects related to wake deflection and roll-up, which can have ...
Julian Schirra +2 more
doaj +1 more source
Application of a LES technique to characterize the wake deflection of a wind turbine in yaw
Wind Energy, 2009 AbstractWhen a wind turbine works in yaw, the wake intensity and the power production of the turbine become slightly smaller and a deflection of the wake is induced. Therefore, a good understanding of this effect would allow an active control of the yaw angle of upstream turbines to steer the wake away from downstream machines, reducing its effect on ...
Ángel Jiménez +2 more
openaire +1 more source
Predicting blade vortex interaction, airloads and acoustics using the vorticity transport model [PDF]
, 2008 Interactions between the blades and vortical structures within the wake of a helicopter rotor are a significant source of impulsive loading and noise, particularly in descending flight.
Kelly, Mary E. +5 more
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Analytical solution for the cumulative wake of yawed wind turbines
, 2022 This thesis sets out to improve the physical grounding and predictive accuracy of cumulative wake effect modelling within wind farms with yawed turbines. It derives an analytical solution for the lateral velocity field within a wind farm and compares its
Gaukroger, Nils (author)
core
Ultrafast oscillations in the human brain and their functional significance
Epilepsia, EarlyView.Abstract Objective The upper frequency limit of human brain activity remains unknown. Using ultrahigh sampling rate (≥20 kHz) intracranial microelectroencephalography, this study aimed to systematically explore and quantitatively characterize brain field oscillations beyond the established high‐frequency oscillation range (>2 kHz), and to determine ...
Milan Brázdil +13 more
wiley +1 more source
Transverse deflections in a cavity due to the short-range longitudinal wake [PDF]
, 2003 Consider an ultra-relativistic electron bunch passing through a (cylindrically symmetric) multi-cell linac cavity that is filled with fundamental mode rf. It is well known that this bunch--on entering the cavity--experiences a focusing kick, and--on exiting the cavity--a defocusing kick, even though the mode is cylindrically symmetric.
openaire +1 more source
Energy Science &Engineering, EarlyView.Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley +1 more source
Influences of yawed conditions on the wake evolution and recovery of axial flow tidal turbines
, 2021 Effects of yawed approaching flows on the wake structure of axial-flow tidal turbines are not fully understood. To obtain a better understanding, numerical studies of a laboratory-scale three-bladed horizontal axis tidal turbine at tip speed ratio TSR=5 ...
Yang, Z., Ahmadi, M.
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Journal of Clinical Psychology, Volume 81, Issue 6, Page 526-537, June 2025.ABSTRACT Deliberate Practice (DP) is a model of behavioral skill acquisition structured by several key tasks. The past decade has shown a consistent growth in interest in this form of learning for psychotherapy skills, with promising research suggesting DP training is superior to traditional learning methods of psychotherapy. This paper presents a case
Dan Sacks
wiley +1 more source
JCPP Advances, EarlyView.This longitudinal study examined how posttraumatic stress (PTS) affects adolescents' responses to peer provocation, using self‐reports from 2014 predominantly ethnic minority youth aged 12–14. Path analysis showed that higher PTS was linked to more aggression, greater perceived hostility, and a lower tendency to ignore provocation, especially among ...
Vladislav Ruchkin +3 more
wiley +1 more source