Results 51 to 60 of about 571,229 (299)

Tailoring wind turbine wake models to incoming free-stream turbulence

Journal of Physics: Conference Series, 2022
Abstract Analytical wake models describe the main wake statistics using a reduced number of parameters: for instance, the Gaussian wake model relies on the single parameter k ∗ to predict the mean wake velocity. However, the robustness of these models to different inflows has been seldom tested and the effects of ...
Stefano Gambuzza, Bharathram Ganapathisubramani   +1 more
openaire   +1 more source

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

Advanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez, Jose I. Garcia‐Peiro, Jose L. Hueso, Eduardo Caleiras, Laura Notario, Felipe Hornos, Pilar Martin‐Duque, Antonio De la Vieja, Jesus Santamaria   +8 more
wiley   +1 more source

Experimental and numerical assessment of the effect of speed and loading conditions on the nominal wake of a containership

Brodogradnja
An important aspect of the design of the propeller is the determination of the nominal wake. In this study, the nominal wake of a Post Panamax containership is determined numerically and experimentally at different speeds and loading conditions.
Carlo Giorgio Grlj, Nastia Degiuli, Ivana Martić   +2 more
doaj   +1 more source

Numerical investigation of the wake interaction between two model wind turbines with span-wise offset [PDF]

, 2014
Wake interaction between two model scale wind turbines with span-wise offset is investigated numerically using Large Eddy Simulation (LES) and the results are validated against the experimental data.
Alfredsson P H, Hamid Sarlak Chivaee, Krogstad P Å, Lutz T, Medici D, Michelsen J A, Robert F Mikkelsen, Sarmast S, Sasan Sarmast, Simms D A, Snel H, Stefan Ivanell, Sørensen J N, Sørensen N N   +13 more
core   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Investigation of Tilt-Proprotor Loads Correlation Between Wind Tunnel Test Data and Comprehensive Modeling

Aerospace
The loads of a model tilt-proprotor with a gimbaled hub were measured in the wind tunnel of CHRDI, operating at 90°, 80°, 70°, 60°, and 45° inclination angles to represent the rotor loads of helicopter and transient flight modes.
Yin Ruan, Weite Wang, Wei Zhang
doaj   +1 more source

Design and Stability Analysis of an Offshore Floating Multi-Wind Turbine Platform

Inventions, 2022
The multi-wind turbine platform technology has the potential to harness the significant source of offshore wind energy in deep waters. However, the wake interference between the turbines on the multi-wind turbine platform can cause a reduction in power ...
Srikanth Bashetty, Selahattin Ozcelik
doaj   +1 more source

An experimental study of airfoil instability tonal noise with trailing edge serrations [PDF]

, 2013
This paper presents an experimental study of the effect of trailing edge serrations on airfoil instability noise. Detailed aeroacoustic measurements are presented of the noise radiated by an NACA-0012 airfoil with trailing edge serrations in a low to ...
Arbey, Blake, Brooks, Chong, Chong, Chong, Chong, Chong, Desquesnes, Gad-el-Hak, Goody, Gruber, Howe, Kingan, Koch, Lee, Lowson, Mattingly, McAlpine, Nash, Paterson, Phillip F. Joseph, Tam, Tam, Turkyilmazoglu, Tze Pei Chong, Woodley, Yu   +27 more
core   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Computationally efficient aerodynamic modelling of swept wind turbine blades using coupled near-wake and vortex cylinder models [PDF]

Wind Energy Science
This study introduces a computationally efficient engineering aerodynamic model specifically designed for load calculations of swept wind turbine blades, overcoming limitations in existing models.
A. Li, M. Gaunaa, G. R. Pirrung
doaj   +1 more source