Results 41 to 50 of about 221,361 (152)

Flow of evaporating, gravity-driven thin liquid films over topography [PDF]

, 2006
The effect of topography on the free surface and solvent concentration profiles of an evaporating thin film of liquid flowing down an inclined plane is considered.
H. M. Thompson, M. Sellier, P. H. Gaskell, P. K. Jimack, Trottenberg U.   +4 more
core   +1 more source

Curled-Skewed Wakes behind Yawed Wind Turbines Subject to Veered Inflow

Energies, 2022
This work presents a new engineering analytical model that predicts the effect of both the turbine yaw misalignment and the inflow wind veer on the wake flow distribution downwind of a wind turbine.
Mohammadreza Mohammadi, Majid Bastankhah, Paul Fleming, Matthew Churchfield, Ervin Bossanyi, Lars Landberg, Renzo Ruisi   +6 more
doaj   +1 more source

Self-modulation instability of a long proton bunch in plasmas

, 2010
An analytical model for the self-modulation instability of a long relativistic proton bunch propagating in uniform plasmas is developed. The self-modulated proton bunch resonantly excites a large amplitude plasma wave (wake field), which can be used for ...
A. Bers, Alexander Pukhov, E. M. Lifshitz, E. P. Lee, K. Lotov, Konstantin Lotov, Naveen Kumar   +6 more
core   +1 more source

Sonic booms and diffusion wakes generated by a heavy quark in thermal AdS/CFT [PDF]

, 2007
We evaluate the Poynting vector generated by a heavy quark moving through a thermal state of N=4 gauge theory using AdS/CFT. A significant diffusion wake is observed as well as a Mach cone. We discuss the ratio of the energy going into sound modes to the
Gubser, Steven S., Pufu, Silviu S., Yarom, Amos   +2 more
core   +1 more source

Determining an Appropriate Parameter of Analytical Wake Models for Energy Capture and Layout Optimization on Wind Farms

Energies, 2020
The wake of a wind turbine is a crucial factor that decreases the output of downstream wind turbines and causes unsteady loading. Various wake models have been developed to understand it, ranging from simple ones to elaborate models that require long ...
Kyoungboo Yang
doaj   +1 more source

Combined Effect of ABL Profile and Rotation in Wind Turbine Wakes: New Three-Dimensional Wake Model

Energies
The combination of the atmospheric boundary layer (ABL) profile and the rotation of wind turbine wakes leads to lateral and vertical displacements of the wake center and to changes in the wake diameter, which are not taken into account by conventional ...
José A. Martinez-Trespalacios, Dimas A. Barile, John L. Millan-Gandara, Jairo Useche, Alejandro D. Otero   +4 more
doaj   +1 more source

An analytical model of wake deflection due to shear flow [PDF]

, 2010
The main motivation behind this work is to create a purely analytical engineering model for wind turbine wake upward deflection due to shear flow, by developing a closed form solution of the velocity field due to an oblique vortex ring. The effectiveness
3rd EWEA Conference-Torque 2010 : The Science of making Torque from Wind, Micallef, Daniel, Sant, Tonio, Simao Ferreira, Carlos, van Bussel, Gerard   +4 more
core  

A Simplified Free Vortex Wake Model of Wind Turbines for Axial Steady Conditions

Applied Sciences, 2018
A simplified free vortex wake (FVW) model called the vortex sheet and ring wake (VSRW) model was developed to rapidly calculate the aerodynamic performance of wind turbines under axial steady conditions.
Bofeng Xu, Tongguang Wang, Yue Yuan, Zhenzhou Zhao, Haoming Liu   +4 more
doaj   +1 more source

A new wake‐merging method for wind‐farm power prediction in the presence of heterogeneous background velocity fields

Wind Energy, 2022
The difference in surface roughness between land and sea, and the terrain complexities, lead to spatially heterogeneous atmospheric conditions, and therefore affect the propagation and dynamics of wind‐turbine and wind‐farm wakes.
Luca Lanzilao, Johan Meyers
doaj   +1 more source

Advancing Wake Loss Prediction in Wind Farms through Analytical Machine Learning Hybridization [PDF]

E3S Web of Conferences
Wake models are still important for wind farm evaluation because they are computationally efficient when predicting turbine interactions and performance of the wind farm layout.
Talbi Bouchra, Abdelouahad Bellat, Mansouri Khalifa   +2 more
doaj   +1 more source