Improving a two-equation eddy-viscosity turbulence model to predict the aerodynamic performance of thick wind turbine airfoils

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dc.contributor.authorBangga, Galih
dc.contributor.authorKusumadewi, Tri
dc.contributor.authorHutomo, Go
dc.contributor.authorSabila, Ahmad
dc.contributor.authorSyawitri, Taurista
dc.contributor.authorSetiadi, Herlambang
dc.contributor.authorFaisal, Muhamad
dc.contributor.authorWiranegara, Raditya
dc.contributor.authorHendranata, Yongki
dc.contributor.authorLastomo, Dwi
dc.contributor.authorPutra, Louis
dc.contributor.authorKristiadi, Stefanus
dc.date.accessioned2018-05-10T17:01:12Z
dc.date.available2018-05-10T17:01:12Z
dc.date.issued2018-04-30
dc.description.abstractNumerical simulations for relatively thick airfoils are carried out in the present studies. An attempt to improve the accuracy of the numerical predictions is done by adjusting the turbulent viscosity of the eddy-viscosity Menter Shear-Stress-Transport (SST) model. The modification involves the addition of a damping factor on the wall-bounded flows incorporating the ratio of the turbulent kinetic energy to its specific dissipation rate for separation detection. The results are compared with available experimental data and CFD simulations using the original Menter SST model. The present model improves the lift polar prediction even though the stall angle is still overestimated. The improvement is caused by the better prediction of separated flow under a strong adverse pressure gradient. The results show that the Reynolds stresses are damped near the wall causing variation of the logarithmic velocity profiles.en_UK
dc.identifier.citationG. Bangga, T. Kusumadewi, G. Hutomo, et al., Improving a two-equation eddy-viscosity turbulence model to predict the aerodynamic performance of thick wind turbine airfoils. Journal of Physics: Conference Series, Volume 974, article number 012019en_UK
dc.identifier.issn1742-6588
dc.identifier.issnhttp://dx.doi.org/10.1088/1742-6596/974/1/012019
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13196
dc.language.isoenen_UK
dc.publisherIOPen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleImproving a two-equation eddy-viscosity turbulence model to predict the aerodynamic performance of thick wind turbine airfoilsen_UK
dc.typeArticleen_UK

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