Quantitative impact of a micro-cylinder as a passive flow control on a horizontal axis wind turbine performance

Mostafa, Wafaa; Abdelsamie, Abouelmagd; Sedrak, Momtaz; Thévenin, Dominique; Mohamed, Mohamed H.

doi:10.1016/j.energy.2021.122654

Cited by 15 publications

(6 citation statements)

References 12 publications

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“…It is discovered that placing the micro-cylinder in front of the airfoil leading edge has a greater impact. Mostafa et al look at the addition of micro-cylinder as a passive flow control surrounding the typical straight-bladed wind turbine from the National Renewable Energy Laboratory (NREL Phase II) [39]. The current computational study uses the Reynolds Average Navier-Stokes (RANS) equations for steady-state incompressible flow along with the Shear Stress Transport (k-SST) turbulence model.…”

Section: The Effects Of Passive Flow Regulation On the Aerodynamic Ef...mentioning

confidence: 99%

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Review of Improving the Performance of Horizontal Axis Wind Turbine Using Passive Flow Control

Ibrahim

2024

ERU Research Journal

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Controlling rotor blade flow separation and dynamic stall is required to improve the aerodynamic performance of horizontal axis wind turbine (HAWT) blades. Active and passive flow controls are the two basic methods for controlling the flow state. The use of passive and/or active flow management strategies to improve the aerodynamic performance of the blade is common. Many publications are currently being conducted to determine the impact of various passive and active strategies on the aerodynamics of blades. Active flow control is limited since it requires an extra controller, actuators, and power source to control the flow. Passive flow control, on the other hand, is more straightforward and less expensive. As a result, passive flow control is more beneficial in real-world applications, but only under certain conditions. Researchers are developing improved designs for HAWT blades, the main component of the turbine responsible for power generation. CFD is a versatile and powerful tool for simulating and analyzing airflow over wind turbines. It can provide detailed information about the flow field around the turbine, including velocity, pressure, and turbulence. This information can be used to understand the aerodynamic forces acting on the turbine and to identify areas for improvement. CFD has been used to develop a variety of design and optimization strategies for wind turbines, leading to significant improvements in aerodynamic performance.

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Section: The Effects Of Passive Flow Regulation On the Aerodynamic Ef...mentioning

confidence: 99%

“…Ebrahimi et al [37] NREL Phase VI, 17% improvement in power output. Micro-cylinders Mostafa et al [39] NREL Phase II, 22% improvement in power output.…”

Section: Micro Tabmentioning

confidence: 99%

Review of Improving the Performance of Horizontal Axis Wind Turbine Using Passive Flow Control

Ibrahim

2024

ERU Research Journal

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“… 71 , 72 Mostafa et al. 73 quantitatively analyzed the impact of micro-cylinders on small horizontal rotor performance, revealing the effect of different micro-cylinder parameters on power generation. To improve blade performance in low Reynolds numbers and low wind operations, various optimization techniques aim to reduce or slow down the efficiency loss caused by blade stalls.…”

Section: Wind Energy Rectifiersmentioning

confidence: 99%

Small wind turbines and their potential for internet of things applications

Wang,

Xiong,

Zhang

et al. 2023

iScience

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“…In addition, placing the micro-cylinder on the pressure side will have a more negligible effect on the wind turbine's power output than placing it close to the leading edge of the turbine blades (Mostafa et al, 2022). Furthermore, other studies are investigating passive flow control devices to enhance the capability of bidirectional Horizontal-axis tidal turbines (BHATT).…”

Section: Introductionmentioning

confidence: 99%

The The Effect of Micro Geometry with Various Forms as Passive Flow Control in NACA 4415

Julian,

Anggara,

Wahyuni

et al. 2023

ASIIMETRIK

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This study investigates the effect of variations in the micro geometry with various forms as passive flow control devices on the aerodynamic capability of the airfoil. Micro-cylinder, micro-slat, and micro-cube are installed close to the leading edge of the NACA 4415 airfoil as a micro geometric variation of passive flow control devices with a predetermined diameter of 3% c located at coordinates x= 0% c and y= 8 %c of the leading edge of the airfoil. The Reynolds number used in this study is Re = with AoA variations from 0°-30°. This study's results show a decrease in Cl of 12% with a micro-cylinder, 26% with a micro-slat, and 28% with a micro-cube. In addition, the Cd produced by using the variation of the device micro geometry has increased significantly. Thus, the final result is a lift-to-drag ratio of more petite than the without micro. In the streamlined contour shown when the airfoil is at a high angle of attack, the use of micro geometric variations of passive flow control devices can have an effect that causes reduced recirculation that occurs in the airfoil. However, the impact of these devices is not optimal, resulting in a reduction in the aerodynamic capability of the NACA 4415 airfoil.

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Quantitative impact of a micro-cylinder as a passive flow control on a horizontal axis wind turbine performance

Cited by 15 publications

References 12 publications

Review of Improving the Performance of Horizontal Axis Wind Turbine Using Passive Flow Control

Review of Improving the Performance of Horizontal Axis Wind Turbine Using Passive Flow Control

Small wind turbines and their potential for internet of things applications

The The Effect of Micro Geometry with Various Forms as Passive Flow Control in NACA 4415

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