Journal ArticleDOI
Turbulence effects on the wake flow and power production of a horizontal-axis wind turbine
Chia Ren Chu,Pei Hung Chiang +1 more
TLDR
In this article, the effects of ambient turbulence on the wake flows and power production of a horizontal-axis wind turbine were investigated, and the power loss due to the velocity deficit in the wake flow was larger than 50% when the downwind distance was less than 12D (D is the rotor diameter).About:
This article is published in Journal of Wind Engineering and Industrial Aerodynamics.The article was published on 2014-01-01. It has received 62 citations till now. The article focuses on the topics: K-epsilon turbulence model & Turbulence kinetic energy.read more
Citations
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Journal ArticleDOI
Wind-Turbine and Wind-Farm Flows: A Review
TL;DR: This review summarizes recent experimental, computational, and theoretical research efforts that have contributed to improving the understanding and ability to predict the interactions of ABL flow with wind turbines and wind farms.
Journal ArticleDOI
Study of wake characteristics of a vertical axis wind turbine by two- and three-dimensional computational fluid dynamics simulations
Heung-Fai Lam,HY Peng +1 more
TL;DR: In this paper, the near and far wakes of a low-solidity two-straight-bladed vertical axis wind turbine were investigated with two-and three-dimensional computational fluid dynamics (CFD) simulations.
Journal ArticleDOI
Comparison of the wake recovery of the axial-flow and cross-flow turbine concepts
Matthieu Boudreau,Guy Dumas +1 more
TL;DR: In this article, a detailed wake analysis of two different turbine concepts is conducted to gain a fundamental understanding of the main energy recovery processes at play in each case, where an axial-flow turbine and a crossflow turbine are considered.
Journal ArticleDOI
Experimental and numerical investigation of the effect of turbulent inflow on a Horizontal Axis Wind Turbine (Part I: Power performance)
TL;DR: In this article, the effect of turbulence intensity and wind shear on the power characteristics of a two-bladed HAWT was analyzed by using a wind tunnel experiments, and the results showed that the power coefficient was strongly dependent on the blade pitch angle and yaw angle.
Journal ArticleDOI
Modeling of horizontal axis wind turbine wakes in Horns Rev offshore wind farm using an improved actuator disc model coupled with computational fluid dynamic
TL;DR: In this paper, an improved methodology is applied on actuator disc in order to take all the operational and geometrical characteristics into account such as airfoil type, angular velocity, twist, and chord distribution.
References
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Book
Low-Speed Wind Tunnel Testing
William H. Rae,Alan Pope +1 more
TL;DR: The use of wind tunnel data for aerodynamic experiments has been studied in this article, where three dimensions of three-dimensional flow and pressure, flow, and shear stress measurements are used to calibrate the test section.
Journal ArticleDOI
Wind turbine wake aerodynamics
TL;DR: In this article, the aerodynamic properties of wind turbine wakes are studied, focusing on the physics of power extraction by wind turbines, and the main interest is to study how the far wake decays downstream in order to estimate the effect produced in downstream turbines.
Book
The Physics of Fluid Turbulence
TL;DR: In this article, the authors present a reference record created on 2005-11-18, modified on 2016-08-08, using the term "fluid reference record" to describe the fluides reference record.
Journal ArticleDOI
A Wind-Tunnel Investigation of Wind-Turbine Wakes: Boundary-Layer Turbulence Effects
TL;DR: In this article, a model wind turbine placed in a boundary layer developed over rough and smooth surfaces was used to study turbulence in the wake of a wind turbine, and the cross-sectional distribution of mean velocity, turbulence intensity and kinematic shear stress at different locations downwind of the turbine for both surface roughness cases.
Journal ArticleDOI
Measurements on a wind turbine wake: 3D effects and bluff body vortex shedding
D. Medici,P. H. Alfredsson +1 more
TL;DR: In this article, the velocity held in the wake of a two-bladed wind turbine model (diameter 180 mm) has been studied under different conditions using a twocomponent hot wire.