Numerical investigation into effects of slot control on flow around wind turbine blades-Reference-Cited by-同舟云学术

Numerical investigation into effects of slot control on flow around wind turbine blades

Published:2024-08-04 Issue: Volume: Page:
ISSN:0309-524X
Container-title:Wind Engineering
language:en
Short-container-title:Wind Engineering

Author:

Dilmaghani Sasan Malekzadeh¹^ORCID,Abedini Saeid²,Adelifar Ayda³,Mogani Reza⁴

Affiliation:

1. Department of Mechanical Engineering, Islamic Azad University, Shabestar Branch, Shabestar, Iran

2. Department of Mechanical Engineering, Ilkhchi Branch, Islamic Azad University, Ilkhchi, Iran

3. Computer Engineering Department, Tabriz University, Tabriz, Iran

4. Electrical Engineering Department, University of Bonab, Bonab, Iran

Abstract

This paper investigates the effects of slots on wind turbine blade sections on the reduction of fluid loads on the airfoil in turbulent flows. The governing conversation equations were discretized using the finite volume method (FVM), numerically simulating an unsteady flow with a turbulent regime. It was found that slots at ΨA70° and high angles of attack (AOAs) improved the aerodynamic performance of the airfoil and delayed the stall by 2°. The Cl-Cd ratio was 31.49%, 79.22%, and 29.66% higher in the slotted airfoil than in the non-slotted one at an AOA of 18°, 20°, and 22°, respectively. Furthermore, slots with ΨA70° at AOAs of 20° and 22° substantially reduced lift and drag variations on the airfoil.

Publisher

SAGE Publications

Link

https://journals.sagepub.com/doi/pdf/10.1177/0309524X241263516

Reference18 articles.

1. Improvement of Aerodynamic Performance of Cambered Airfoils Using Leading-Edge Slots

2. Effect of wind turbine size on load reduction with active flow control

3. Dynamic stall modelling of the S809 aerofoil and comparison with experiments

4. Dynamic Stall Analysis of S809 Pitching Airfoil in Unsteady Free Stream Velocity