Results 11 to 20 of about 222,754 (312)

Analytical modelling prediction by using wake oscillator model for vortex-induced vibrations

open access: diamondJournal of Mechanical Engineering and Sciences, 2017
Explorations by oil and gas companies have moved from shallow to deep water to satisfy consumers' changing needs. A circular- shaped cylinder structure placed in deep water is also known spar platform, is normally floated and subjected to severe ...
W.N.W. Hussin   +3 more
doaj   +3 more sources

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

open access: green, 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   +4 more
core   +5 more sources

Analytical Modeling of Wind Farms: A New Approach for Power Prediction [PDF]

open access: yesEnergies, 2016
Wind farm power production is known to be strongly affected by turbine wake effects. The purpose of this study is to develop and test a new analytical model for the prediction of wind turbine wakes and the associated power losses in wind farms.
Amin Niayifar, Fernando Porté-Agel
doaj   +5 more sources

An Analytical Model for Wind Turbine Wakes under Pressure Gradient

open access: yesEnergies, 2022
In this study, we present an analytical modeling framework for wind turbine wakes under an arbitrary pressure gradient imposed by the base flow. The model is based on the conservation of the streamwise momentum and self-similarity of the wake velocity ...
Arslan Salim Dar, Fernando Porté-Agel
doaj   +2 more sources

An analytical model for a full wind turbine wake [PDF]

open access: diamondJournal of Physics: Conference Series, 2016
An analytical wind turbine wake model is proposed to predict the wind velocity distribution for all distances downwind of a wind turbine, including the near-wake. This wake model augments the Jensen model and subsequent derivations thereof, and is a direct generalization of that recently proposed by Bastankhah and Porte-Agel.
A. Keane   +4 more
openalex   +3 more sources

Analytical models for the asymmetric wake of vertical axis wind turbines [PDF]

open access: green, 2020
Arrays of Vertical Axis Wind Turbines (VAWTs) can achieve larger power generation per land area than horizontal axis turbines farms, due to the positive synergy between VATs in close proximity. Theoretical wake models enable the reliable design of the array layout that maximises the energy output, which need to depict the driving wake dynamics.
Pablo Ouro, Maxime Lazennec
openalex   +3 more sources

Wakeflow: A Python package for semi-analytic models ofplanetary wakes [PDF]

open access: diamondJournal of Open Source Software, 2023
Thomas Hilder   +3 more
openalex   +2 more sources

Wake redirection: comparison of analytical, numerical and experimental models [PDF]

open access: diamondJournal of Physics: Conference Series, 2016
This paper focuses on wake redirection techniques for wind farm control. Two control strategies are investigated: yaw misalignment and cyclic pitch control. First, analytical formulas are derived for both techniques, with the goal of providing a simple physical interpretation of the behavior of the two methods. Next, more realistic results are obtained
Jiangang Wang   +2 more
openalex   +2 more sources

Experiments in the wind turbine far wake for the evaluation of an analytical wake model

open access: diamondJournal of Physics: Conference Series, 2017
Nowadays, not only the size of single wind turbines but also the size of wind farms is increasing. Understanding the interaction between the turbines and especially the wakes formed behind them are getting more important to further improve such wind turbine arrays. Consequently, new issues in wind energy research arise.
Luis Fernando Velásquez‐García   +3 more
openalex   +4 more sources

Qualification of Three Analytical Wake Models [PDF]

open access: hybridJournal of Mechanics Engineering and Automation, 2016
Naima Charhouni   +2 more
openalex   +2 more sources

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