scholarly journals Impact and mitigation of blade surface roughness effects on wind turbine performance

Wind Energy ◽  
2021 ◽  
Author(s):  
Jack Kelly ◽  
Christopher Vogel ◽  
Richard Willden
Keyword(s):  
Surface Roughness ◽  
Wind Turbine ◽  
Blade Surface ◽  
Roughness Effects ◽  
Turbine Performance

scholarly journals Experimental investigation of Surface Roughness effects and Transition on Wind Turbine performance

2018 ◽  
Vol 1037 ◽  
pp. 052018 ◽  
Author(s):  
O Pires ◽  
X Munduate ◽  
K Boorsma ◽  
O Ceyhan Yilmaz ◽  
H Aa Madsen ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Wind Turbine ◽  
Roughness Effects ◽  
Turbine Performance

scholarly journals Effect of Surface Roughness on Wind Turbine Performance.

2017 ◽  
Author(s):  
Robert S. Ehrmann ◽  
Benjamin Wilcox ◽  
Edward B. White ◽  
David Charles Maniaci
Keyword(s):  
Surface Roughness ◽  
Wind Turbine ◽  
Turbine Performance ◽  
Effect Of Surface

scholarly journals Wear Resistance Performance of Conventional and Non-Conventional Wind Turbine Blades with TiN Nano-Coating

2017 ◽  
Vol 2 (3) ◽  
pp. 37-48
Author(s):  
Muhammad Hasibul Hasan ◽  
Shugata Ahmed
Keyword(s):  
Surface Roughness ◽  
Shear Stress ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Erosion Rate ◽  
Blade Surface ◽  
Impingement Angle ◽  
Nano Coating ◽  
Wind Velocities ◽  
Sand Particles

Efficiency and durability are critical issues that affect widely-adopted aerofoil-power generator as a sustainable source of electrical power. Even though high wind power density can be achieved; installing wind turbines in desert condition has difficulties including thermal variation, high turbulence and sand storms. Sand blasting on turbine blade surface at high velocities causes erosion resulting turbine efficiency drop. Damage-induced erosion phenomena and aeroelastic performance of the blades needed to be investigated. Suitable coating may prevent erosion to a great extent. A numerical investigation of erosion on NACA 4412 wind turbine blade has been performed using commercial computational fluid dynamics software ANSYS FLUENT 14.5 release. Discrete phase model (DPM) has been used for modelling multi-phase flow of air and sand particles over the turbine blade. Governing equations have been solved by finite volume method (FVM). Conventional 30-70% glass fibre resin and non-conventional jute fibre composite have been used as turbine blade material. Sand particles of  diameter have been injected from 20, 30, 45, 60 and 90 degree angles at 500C temperature. Erosion rate, wall shear stress and strain rate have been calculated for different wind velocities and impingement angles. Simulation results for higher velocities deviate from the results observed at lower wind velocities. In simulation, erosion rate is highest for impingement angle at low wind velocities, which has been validated by experiment with a mean absolute error (MAE) of 5.56%. Erosion rate and wall shear stress are higher on jute composite fibre than glass fibre resin. Developed shear stress on wind turbine blade surface is highest for  impingement angle at all velocities. On the other hand, exerted pressure on turbine blade surface is found highest for 9  angle of attack. Experimental results, with or without Titanium nitride(TiN) nano-coating, also revealed that surface roughness augments with increasing impingement angles. Nano-coating (TiN) by RF sputtering technique reduced the surface roughness significantly as oppose to uncoated samples. Highest roughness has been observed on uncoated blade surface collided with 0.3-0.69 mm diameter brown aluminium oxide particles.

Observations of wind turbine wakes and surface roughness effects on wind flow variability

Solar Energy ◽  
1990 ◽  
Vol 45 (5) ◽  
pp. 265-283 ◽  
Author(s):  
D.L. Elliott ◽  
J.C. Barnard
Keyword(s):  
Surface Roughness ◽  
Wind Turbine ◽  
Wind Flow ◽  
Roughness Effects ◽  
Flow Variability

scholarly journals Surface Roughness Effects on Ice Shape of Wind Turbine

2018 ◽  
Author(s):  
Jian LIANG ◽  
Mao-lian LIU ◽  
Kai-wen XUE ◽  
Wei-long LYU
Keyword(s):  
Surface Roughness ◽  
Wind Turbine ◽  
Roughness Effects

scholarly journals Numerical Simulation of Surface Roughness Effects on Dynamic Stall of Wind Turbine Blade

2013 ◽  
Vol 7 (1) ◽  
pp. 32-48 ◽  
Author(s):  
Belkheir NOURA ◽  
Sofiane KHELLADI ◽  
Rabah DIZENE ◽  
Farid BAKIR
Keyword(s):  
Numerical Simulation ◽  
Surface Roughness ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Dynamic Stall ◽  
Roughness Effects

S051036 A study on the improvement of small wind turbine performance with blade surface boundary layer control

2012 ◽  
Vol 2012 (0) ◽  
pp. _S051036-1-_S051036-5
Author(s):  
Yasunari KAMADA ◽  
Takao MAEDA ◽  
Junsuke MURATA ◽  
Yusuke NISHIDA ◽  
Tomofumi SUGAHARA
Keyword(s):  
Boundary Layer ◽  
Wind Turbine ◽  
Boundary Layer Control ◽  
Surface Boundary ◽  
Blade Surface ◽  
Surface Boundary Layer ◽  
Small Wind Turbine ◽  
Turbine Performance ◽  
Layer Control

scholarly journals Surface Roughness Effects on Ice Shape of Wind Turbine

2018 ◽  
Author(s):  
Jian LIANG ◽  
Mao-lian LIU ◽  
Kai-wen XUE ◽  
Wei-long LYU
Keyword(s):  
Surface Roughness ◽  
Wind Turbine ◽  
Roughness Effects

Quantification of Extreme-Scale Wind Turbine Performance Parameters due to Variations in Beam Properties

2021 ◽  
Author(s):  
Alejandra S. Escalera Mendoza ◽  
Mayank Chetan ◽  
D. Todd Griffith
Keyword(s):  
Wind Turbine ◽  
Performance Parameters ◽  
Turbine Performance ◽  
Extreme Scale
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