Improving performance of H-Type NACA 0021 Darrieus rotor using leading-edge stationary/rotating microcylinders: Numerical studies

WA El-Askary, M Burlando, MH Mohamed… - Energy Conversion and …, 2023 - Elsevier
In the current paper, a computational study has been performed to simulate a novel concept
in which a fixed/rotating microcylinder is installed upstream of the leading edge of the NACA …

[HTML][HTML] Experimental and numerical investigations of aerodynamic characteristics for wind turbine airfoil using multi-suction jets

AM Elsayed, MA Khalifa, E Benini, MA Aziz - Energy, 2023 - Elsevier
The present work investigates the effects of multi-suction jets on the NACA 0012 airfoil's
aerodynamic characteristics at Reynolds number Re equal 0.54× 10 5. Experiments and …

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

W Mostafa, A Abdelsamie, M Sedrak, D Thévenin… - Energy, 2022 - Elsevier
Adding micro-cylinder as a passive flow control is a new trend to enhance the power output
of wind turbines. The impact of adding micro-cylinder, with different configurations, around …

Dynamic mode decomposition analysis of flow separation control on wind turbine airfoil using leading− edge rod

J Zhong, J Li, H Liu - Energy, 2023 - Elsevier
The mechanism of a novel passive flow separation control method for a wind turbine, called
the leading-edge rod, was investigated using numerical simulation and dynamic mode …

Performance enhancement analysis of a horizontal axis wind turbine by vortex trapping cavity

K Qaissi, O Elsayed, M Faqir… - Journal of Energy …, 2022 - asmedigitalcollection.asme.org
A wind turbine blade has the particularity of containing twisted and tapered thick airfoils. The
challenge with this configuration is the highly separated flow in the region of high twist. This …

Passive flow control for the E423 airfoil utilizing an equilateral triangular trip

S Rahmani, ZJ Wang - Physics of Fluids, 2023 - pubs.aip.org
A passive flow control technique of utilizing an equilateral triangular trip close to the leading
edge was developed and tested for a micro-scale Eppler E423 airfoil at a Reynolds number …

Experimental investigation of small wind turbine airfoil under pulsate suction jet

MA Aziz, AM Elsayed, E Benini, SHR Ali… - Wind …, 2024 - journals.sagepub.com
Recently there has been a great concern in applying active airflow control to Small wind
turbine blade airfoils to improve the aerodynamic characteristics. One of these novel …

Aerodynamic Optimization of Trailing-Edge-Serrations for a Wind Turbine Blade Using Taguchi Modified Additive Model

K Qaissi, O Elsayed, M Faqir, E Essadiqi - Energies, 2023 - mdpi.com
For the rotor, achieving relatively high aerodynamic performance in specific wind conditions
is a long-term goal. Inspired by the remarkable flight characteristics of owls, an optimal …

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

WM Ibrahim - ERU Research Journal, 2024 - erurj.journals.ekb.eg
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 control effect using micro-cylinder on airfoil NACA 4415

J Julian, RA Anggara, W Iskandar, F Wahyuni… - AIP Conference …, 2024 - pubs.aip.org
The energy crisis does not sound familiar today. Human dependence on conventional
energy causes adverse effects such as greenhouse gas emissions and environmental …