Numerical study of the effect of trailing edge bluntness on highly turbulent hydrofoil flow

Do, T, Chen, L and Tu, J 2007, 'Numerical study of the effect of trailing edge bluntness on highly turbulent hydrofoil flow', ANZIAM Journal, vol. 47, pp. 822-839.


Document type: Journal Article
Collection: Journal Articles

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Title Numerical study of the effect of trailing edge bluntness on highly turbulent hydrofoil flow
Author(s) Do, T
Chen, L
Tu, J
Year 2007
Journal name ANZIAM Journal
Volume number 47
Start page 822
End page 839
Total pages 17
Publisher Australian Mathematical Society
Abstract Turbulent trailing edge flow over control surfaces continues to be of interest to many designers and researchers alike due to the associated complex and adverse phenomena. In this study a two dimensional NACA0015 airfoil was modified at the trailing edge by vertically `cutting' at various locations along the chord axis thereby changing the Reynolds number based on the trailing edge height, while keeping the chord-length based Reynolds number fixed at 3.49 million. The numerical results show the bluntness parameter at onset of vortex shedding agree well with published data for sections having a blunt trailing edge. A parametric study suggests that increasing the trailing edge height tends to reduce the frequency of vortex shedding. Also, the variational trend of wake formation lengths with increasing trailing edge Reynolds number resembles that of flow past a circular cylinder. The Strouhal number for this blunt section is approximately 0.09.
Subject Aerodynamics (excl. Hypersonic Aerodynamics)
Keyword(s) Hydrofoil
turbulent flow
wake
cfd
Copyright notice © Austral. Mathematical Soc. 2007.
ISSN 1446-1811
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