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Turbulence model selection for low Reynolds number flows


Citation

Aftab, Syed Mohammed Aminuddin and Mohd Rafie, Azmin Shakrine and Abdul Razak, Norizham and Ahmad, Kamarul Arifin (2016) Turbulence model selection for low Reynolds number flows. PLOS ONE, 11 (4). art. no. e0153755. pp. 1-15. ISSN 1932-6203

Abstract

One of the major flow phenomena associated with low Reynolds number flow is the formation of separation bubbles on an airfoil’s surface. NACA4415 airfoil is commonly used in wind turbines and UAV applications. The stall characteristics are gradual compared to thin airfoils. The primary criterion set for this work is the capture of laminar separation bubble. Flow is simulated for a Reynolds number of 120,000. The numerical analysis carried out shows the advantages and disadvantages of a few turbulence models. The turbulence models tested were: one equation Spallart Allmars (S-A), two equation SST K-ω, three equation Intermittency (γ) SST, k-kl-ω and finally, the four equation transition γ-Reθ SST. However, the variation in flow physics differs between these turbulence models. Procedure to establish the accuracy of the simulation, in accord with previous experimental results, has been discussed in detail.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1371/journal.pone.0153755
Publisher: Public Library of Science
Keywords: Reynolds number flow; Reynolds number
Depositing User: Nida Hidayati Ghazali
Date Deposited: 30 Oct 2017 04:42
Last Modified: 24 Oct 2019 00:42
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1371/journal.pone.0153755
URI: http://psasir.upm.edu.my/id/eprint/53177
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