CFD simulation of a vertical axis wind turbine operating at a moderate tip speed ratio: guidelines for minimum domain size and azimuthal increment
TLDR
In this paper, the effect of the domain size and azimuthal increment on the performance of a 2-bladed VAWT operating at a moderate tip speed ratio of 4.5 using 2-dimensional and 2.5-dimensional simulations with the unsteady Reynolds-averaged Navier-Stokes (URANS).About:
This article is published in Renewable Energy.The article was published on 2017-07-01 and is currently open access. It has received 192 citations till now. The article focuses on the topics: Vertical axis wind turbine & Tip-speed ratio.read more
Citations
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Wind turbine design with emphasis on Darrieus concept Ion Paraschivoiu
TL;DR: In this article, the aerodynamic design and performance of VAWTs based on the Darrieus concept is discussed, as well as future trends in design and the inherent socioeconomic and environmental friendly aspects of wind energy as an alternate source of energy.
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Effect of pitch angle on power performance and aerodynamics of a vertical axis wind turbine
TL;DR: In this article, the authors investigated the variations in loads and moments on the turbine as well as the experienced angle of attack, shed vorticity and boundary layer events (leading edge and trailing edge separation, laminar-to-turbulent transition) as a function of pitch angle.
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On the accuracy of turbulence models for CFD simulations of vertical axis wind turbines
TL;DR: In this paper, a comparative analysis of seven commonly-used eddy-viscosity turbulence models for CFD simulations of VAWTs is presented, including the Spalart-Allmaras (SA), RNG k-e, realizable K-e and SST k-ω, with an additional intermittency transition model (SSTI), k-kl-ω and transition SST (TSST) K-ω models.
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Towards accurate CFD simulations of vertical axis wind turbines at different tip speed ratios and solidities: Guidelines for azimuthal increment, domain size and convergence
TL;DR: In this paper, the authors investigate the impact of these parameters on the simulation results to guide the execution of accurate CFD simulations of VAWTs at different tip speed ratios (λ) and solidities (σ).
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A review on computational fluid dynamic simulation techniques for Darrieus vertical axis wind turbines
TL;DR: In this article, a review of recent published works on CFD simulations of Darrieus VAWTs is presented for turbulence modeling, spatial and temporal discretization, numerical schemes and algorithms, and computational domain size.
References
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A new k-ϵ eddy viscosity model for high reynolds number turbulent flows
TL;DR: In this article, a new k -ϵ eddy viscosity model, which consists of a new model dissipation rate equation and a new realizable eddy viscous formulation, is proposed.
Book
Low-Speed Wind Tunnel Testing
William H. Rae,Alan Pope +1 more
TL;DR: The use of wind tunnel data for aerodynamic experiments has been studied in this article, where three dimensions of three-dimensional flow and pressure, flow, and shear stress measurements are used to calibrate the test section.
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Quantification of uncertainty in computational fluid dynamics
TL;DR: This review covers Verification, Validation, Confirmation and related subjects for computational fluid dynamics (CFD), including error taxonomies, error estimation and banding, convergence rates, surrogate estimators, nonlinear dynamics, and error estimation for grid adaptation vs Quantification of Uncertainty.
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AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings
Yoshihide Tominaga,Akashi Mochida,Ryuichiro Yoshie,Hiroto Kataoka,Tsuyoshi Nozu,Masaru Yoshikawa,Taichi Shirasawa +6 more
TL;DR: In this paper, the authors present guidelines for using computational fluid dynamics (CFD) techniques for predicting pedestrian wind environment around buildings in the design stage, based on cross-comparison between CFD predictions, wind tunnel test results and field measurements.
A New K-epsilon Eddy Viscosity Model for High Reynolds Number Turbulent Flows: Model Development and Validation
TL;DR: In this article, a new k-epsilon eddy viscosity model, which consists of a new model dissipation rate equation and a new realizable eddy viscous formulation, is proposed.