Optimization of a vertical axis wind turbine with a deflector under unsteady wind conditions via Taguchi and neural network applications

WH Chen, JS Wang, MH Chang, AT Hoang… - Energy Conversion and …, 2022 - Elsevier
Vertical axis wind turbines (VAWTs), so named because of their vertical axis of rotation, are
a sustainable, opportune, and versatile means of producing energy. Their operation is not …

Computational fluid dynamics (CFD) mesh independency techniques for a straight blade vertical axis wind turbine

KM Almohammadi, DB Ingham, L Ma, M Pourkashan - Energy, 2013 - Elsevier
This paper numerically investigates four methods, namely mesh refinement, General
Richardson Extrapolation (GRE), Grid Convergence Index (GCI), and the fitting method, in …

Numerical simulation of a vertical axis wind turbine airfoil experiencing dynamic stall at high Reynolds numbers

B Hand, G Kelly, A Cashman - Computers & Fluids, 2017 - Elsevier
Multi-megawatt floating vertical axis wind turbines (VAWTs) are a promising solution to
exploit offshore wind energy resources in deep water sites. At this large-scale, the VAWT's …

Comparative CFD analysis of vertical axis wind turbine in upright and tilted configuration

AM Chowdhury, H Akimoto, Y Hara - Renewable energy, 2016 - Elsevier
There is a demand of analyzing tilted Vertical Axis Wind Turbine (VAWT) for the emerging
applications like VAWTs operating on high rise buildings, Floating Axis Wind Turbine …

Design and aerodynamic performance analyses of the self-starting H-type VAWT having J-shaped aerofoils considering various design parameters using CFD

Y Celik, D Ingham, L Ma, M Pourkashanian - Energy, 2022 - Elsevier
Although the J-shaped aerofoil is a possible solution to enhance the torque generation at
the low tip speed ratios, the effect of the J-shaped aerofoil on the overall and the dynamic …

Aerodynamic analysis of side-by-side placed twin vertical-axis wind turbines

G Jin, Z Zong, Y Jiang, L Zou - Ocean Engineering, 2020 - Elsevier
The twin vertical-axis wind turbine (VAWT) system is a high-performance design in which
two turbines are placed side by side with a variable gap distance. In this paper, the large …

Aerodynamic modeling methods for a large-scale vertical axis wind turbine: A comparative study

B Hand, A Cashman - Renewable Energy, 2018 - Elsevier
Vertical axis wind turbines (VAWTs) are experiencing a renewed interest for large-scale
offshore wind energy generation. However, the three-dimensional (3D) modeling of VAWT …

Numerical investigation and aerodynamic simulation of Darrieus H-rotor wind turbine at low Reynolds numbers

H Seifi Davari, S Kouravand… - Energy Sources, Part …, 2023 - Taylor & Francis
In order to select an airfoil suitable for the wind tunnel testing on a three-bladed Darrieus H-
rotor wind turbine, several symmetrical National Advisory Committee for Aeronautics (NACA) …

A two and three-dimensional CFD investigation into performance prediction and wake characterisation of a vertical axis turbine

B Mannion, SB Leen, S Nash - Journal of Renewable and Sustainable …, 2018 - pubs.aip.org
The emergence of tidal energy as a key renewable energy source requires the development
of computational design models for accurate prediction of turbine performance and wake …

An implementation of an aeroacoustic prediction model for broadband noise from a vertical axis wind turbine using a CFD informed methodology

JDM Botha, A Shahroki, H Rice - Journal of Sound and Vibration, 2017 - Elsevier
This paper presents an enhanced method for predicting aerodynamically generated
broadband noise produced by a Vertical Axis Wind Turbine (VAWT). The method improves …