Taurista Perdana Syawitri
Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine
Syawitri, Taurista Perdana; Yao, Yufeng; Yao, Jun; Chandra, Budi
Authors
Yufeng Yao Yufeng.Yao@uwe.ac.uk
Professor in Aerospace Engineering
Dr Jun Yao Jun.Yao@uwe.ac.uk
Senior Lecturer Aerospace Themofluids
Budi Chandra Budi.Chandra@uwe.ac.uk
Associate Director (Mobility Technologies)
Abstract
Purpose: The aim of this paper is to assess the ability of a stress-blended eddy simulation (SBES) turbulence model to predict the performance of a three-straight-bladed vertical axis wind turbine (VAWT). The grid sensitivity study is conducted to evaluate the simulation accuracy. Design/methodology/approach: The unsteady Reynolds-averaged Navier–Stokes equations are solved using the computational fluid dynamics (CFD) technique. Two types of grid topology around the blades, namely, O-grid (OG) and C-grid (CG) types, are considered for grid sensitivity studies. Findings: With regard to the power coefficient (Cp), simulation results have shown significant improvements of predictions using compared to other turbulence models such as the k-e model. The Cp distributions predicted by applying the CG mesh are in good agreement with the experimental data than that by the OG mesh. Research limitations/implications: The current study provides some new insights of the use of SBES turbulence model in VAWT CFD simulations. Practical implications: The SBES turbulence model can significantly improve the numerical accuracy on predicting the VAWT performance at a lower tip speed ratio (TSR), which other turbulence models cannot achieve. Furthermore, it has less computational demand for the finer grid resolution used in the RANS-Large Eddy Simulation (LES) “transition” zone compared to other hybrid RANS-LES models. Originality/value: To authors’ knowledge, this is the first attempt to apply SBES turbulence model to predict VAWT performance resulting for accurate CFD results. The better prediction can increase the credibility of computational evaluation of a new or an improved configuration of VAWT.
Citation
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2021). Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine. International Journal of Numerical Methods for Heat and Fluid Flow, 31(2), 655-673. https://doi.org/10.1108/HFF-09-2019-0689
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 27, 2020 |
Online Publication Date | Jun 18, 2020 |
Publication Date | Mar 10, 2021 |
Deposit Date | Jun 22, 2020 |
Publicly Available Date | Mar 28, 2024 |
Journal | International Journal of Numerical Methods for Heat and Fluid Flow |
Print ISSN | 0961-5539 |
Electronic ISSN | 0961-5539 |
Publisher | Emerald |
Peer Reviewed | Peer Reviewed |
Volume | 31 |
Issue | 2 |
Pages | 655-673 |
DOI | https://doi.org/10.1108/HFF-09-2019-0689 |
Keywords | Vertical axis wind turbine; grid topology sensitivity; stress-blended eddy simulation |
Public URL | https://uwe-repository.worktribe.com/output/6051289 |
Publisher URL | https://www.emerald.com/insight/content/doi/10.1108/HFF-09-2019-0689/full/html |
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