Results 131 to 140 of about 74,669 (264)
Study on the impact of Gurney flap parameters on rotor performance improvement
Hangkong gongcheng jinzhanAt present, most of the research on installing Gurney flaps is focused on two-dimensional airfoils. The three-dimensional blade model is established to investigate the influence of different Gurney flap parameters on rotor aerodynamic performance ...
LIU Shaoteng +3 more
doaj +1 more source
Wind Energy, Volume 29, Issue 2, February 2026.ABSTRACT The focus on wind power frequency regulation has largely been on individual wind farms, which presents challenges in meeting the coordinated operation needs of multiple stations within large‐scale installations. To address issues of model simplification and accuracy, we propose a large‐scale wind farm equivalent modeling method based on ...
Hongchun Shu +4 more
wiley +1 more source
Paint it black: Efficacy of increased wind turbine rotor blade visibility to reduce avian fatalities. [PDF]
Ecol Evol, 2020 May R +5 more
europepmc +1 more source
Failure Criterion‐Based Bead Optimization of a Wind Turbine Blade Root Section
Wind Energy, Volume 29, Issue 2, February 2026.ABSTRACT This study presents a bead‐based optimization framework for fiber composite wind turbine blades, employing the Tsai–Wu failure criterion as the structural performance measure. The objective is to design an optimal transition geometry between an existing blade and a root section with 20% smaller diameter, while preserving the original material ...
Philipp Ulrich Haselbach +4 more
wiley +1 more source
Blade loss transient dynamics analysis, volume 1. Task 1: Survey and perspective [PDF]
An analytical technique was developed to predict the behavior of a rotor system subjected to sudden unbalance. The technique is implemented in the Turbine Engine Transient Rotor Analysis (TETRA) computer program using the component element method.
Bach, L. J. +3 more
core +1 more source
Wind Energy, Volume 29, Issue 2, February 2026.ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley +1 more source
Rotor-vortex interaction noise [PDF]
A theoretical and experimental study was conducted to develop a validated first principles analysis for predicting noise generated by helicopter main-rotor shed vortices interacting with the tail rotor.
Amiet, R. K., Schlinker, R. H.
core +1 more source
Idealized Offshore Low‐Level Jets for Turbine Structural Impact Considerations
Wind Energy, Volume 29, Issue 2, February 2026.ABSTRACT Low‐level jets (LLJs) describe conditions in which the wind speed reaches a local maximum with respect to altitude near the surface; they have been observed intermittently in the US mid‐Atlantic offshore environment. LLJs pose unique operating conditions for future wind turbines operating in the region, such as negative shear and locally ...
Emily de Jong +2 more
wiley +1 more source
Reconstruction of a three-dimensional, transonic rotor flow field from holographic interferogram data [PDF]
Holographic interferometry and computerized aided tomography (CAT) are used to determine the transonic velocity field of a model rotor blade in hover. A pulsed ruby laser recorded 40 interferograms with a 2 ft dia view field near the model rotor blade ...
Kittleson, John K., Yu, Yung H.
core +1 more source
One‐Dimensional Finite Elements With Arbitrary Cross‐Sectional Displacement Fields
International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.ABSTRACT This paper introduces an unprecedented unified approach for developing structural theories with an arbitrary kinematic variable over the beam cross‐section. Each of the three displacement variables can be analyzed using an independent expansion function. Both the order of the expansion and the number of terms in each field can be any. That is,
E. Carrera, D. Scano, E. Zappino
wiley +1 more source