A review on computational fluid dynamic simulation techniques for Darrieus vertical axis wind turbines. (1st October 2017)

• Record Type: Journal Article
• Authors: Ghasemian, Masoud; Ashrafi, Z. Najafian; Sedaghat, Ahmad
• Is Part Of: Energy conversion and management. Volume 149(2017)
• Page Start: 87
• Page End: 100
• Publication Date: 2017-10-01
• Subjects: Vertical axis wind turbine -- Computational fluid dynamic -- Darrieus -- Power augmentation -- Wind farm -- Blade modification; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2017.07.016
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: A review on CFD simulation technique for Darrieus wind turbines is provided. Recommendations and guidelines toward reliable and accurate simulations are presented. Different progresses in CFD simulation of Darrieus wind turbines are addressed. Abstract: The global warming threats, the presence of policies on support of renewable energies, and the desire for clean smart cities are the major drives for most recent researches on developing small wind turbines in urban environments. VAWTs (vertical axis wind turbines) are most appealing for energy harvesting in the urban environment. This is attributed due to structural simplicity, wind direction independency, no yaw mechanism required, withstand high turbulence winds, cost effectiveness, easier maintenance, and lower noise emission of VAWTs. This paper reviews recent published works on CFD (computational fluid dynamic) simulations of Darrieus VAWTs. Recommendations and guidelines are presented for turbulence modeling, spatial and temporal discretization, numerical schemes and algorithms, and computational domain size. The operating and geometrical parameters such as tip speed ratio, wind speed, solidity, blade number and blade shapes are fully investigated. The purpose is to address different progresses in simulations areas such as blade profile modification and optimization, wind turbine performance augmentation using guide vanes, wind turbine wake interaction in wind farms, wind turbine aerodynamic noise reduction, dynamic stall control, self-starting characteristics, and effects of unsteady and skewed wind conditions.