One of the important factors that determine the long term efficiency of wind turbine blades is the extent to which the surface finish has been altered from the original state. This can happen either through corrosion or through impingement of particles. This paper aims at analyzing the effect of the later phenomenon on two specific profiles: the NREL S814 and NREL S826 profiles, at different Reynold’s numbers. These are two very similar profiles in utility and shape but differ in their thickness. This fact is used to ascertain the effect that thickness of an airfoil has on preventing surface fouling based performance degradation. Surface fouling has been modeled as a roughness at the leading edge of the profile. This is assumed to cause enough flow transition so as to simulate roughness over the entire profile. CFD simulations have been used to perform the analysis and initial results have been validated with experimental data. The accuracy of turbulence models in predicting normal and surface fouled conditions has been assessed. The performance parameters that have been considered are the lift, drag, moment coefficients and the drag to lift ratio.
| Published in |
International Journal of Energy and Power Engineering (Volume 4, Issue 5-1)
This article belongs to the Special Issue Energy Systems and Developments |
| DOI | 10.11648/j.ijepe.s.2015040501.11 |
| Page(s) | 1-11 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2015. Published by Science Publishing Group |
Surface Fouling, Wind Turbine Blades, S814 Airfoil, S826 Airfoil
| [1] | Dalili.A, Edrisy.A, Carriveau.R, 2009 “A review of surface engineering issues critical to wind turbine performance”, Renewable and Sustainable Energy Reviews 13, pp. 428–438 |
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| [4] | Janiszewska.J, Ramsay.R, Hoffmann.M.J, Gregorek.G.M, 1996, “Effects of Grit Roughness and Pitch Oscillations on the S814 Airfoil”, Airfoil Performance Report, Revised (12/99), National Renewable Energy Laboratory, USA. |
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APA Style
Sashank Srinivasan, Vikranth Kumar Surasani. (2015). CFD Analysis of Effects of Surface Fouling on Wind Turbine Airfoil Profiles. International Journal of Energy and Power Engineering, 4(5-1), 1-11. https://doi.org/10.11648/j.ijepe.s.2015040501.11
ACS Style
Sashank Srinivasan; Vikranth Kumar Surasani. CFD Analysis of Effects of Surface Fouling on Wind Turbine Airfoil Profiles. Int. J. Energy Power Eng. 2015, 4(5-1), 1-11. doi: 10.11648/j.ijepe.s.2015040501.11
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Download@article{10.11648/j.ijepe.s.2015040501.11,
author = {Sashank Srinivasan and Vikranth Kumar Surasani},
title = {CFD Analysis of Effects of Surface Fouling on Wind Turbine Airfoil Profiles},
journal = {International Journal of Energy and Power Engineering},
volume = {4},
number = {5-1},
pages = {1-11},
doi = {10.11648/j.ijepe.s.2015040501.11},
url = {https://doi.org/10.11648/j.ijepe.s.2015040501.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.s.2015040501.11},
abstract = {One of the important factors that determine the long term efficiency of wind turbine blades is the extent to which the surface finish has been altered from the original state. This can happen either through corrosion or through impingement of particles. This paper aims at analyzing the effect of the later phenomenon on two specific profiles: the NREL S814 and NREL S826 profiles, at different Reynold’s numbers. These are two very similar profiles in utility and shape but differ in their thickness. This fact is used to ascertain the effect that thickness of an airfoil has on preventing surface fouling based performance degradation. Surface fouling has been modeled as a roughness at the leading edge of the profile. This is assumed to cause enough flow transition so as to simulate roughness over the entire profile. CFD simulations have been used to perform the analysis and initial results have been validated with experimental data. The accuracy of turbulence models in predicting normal and surface fouled conditions has been assessed. The performance parameters that have been considered are the lift, drag, moment coefficients and the drag to lift ratio.},
year = {2015}
}
TY - JOUR T1 - CFD Analysis of Effects of Surface Fouling on Wind Turbine Airfoil Profiles AU - Sashank Srinivasan AU - Vikranth Kumar Surasani Y1 - 2015/09/02 PY - 2015 N1 - https://doi.org/10.11648/j.ijepe.s.2015040501.11 DO - 10.11648/j.ijepe.s.2015040501.11 T2 - International Journal of Energy and Power Engineering JF - International Journal of Energy and Power Engineering JO - International Journal of Energy and Power Engineering SP - 1 EP - 11 PB - Science Publishing Group SN - 2326-960X UR - https://doi.org/10.11648/j.ijepe.s.2015040501.11 AB - One of the important factors that determine the long term efficiency of wind turbine blades is the extent to which the surface finish has been altered from the original state. This can happen either through corrosion or through impingement of particles. This paper aims at analyzing the effect of the later phenomenon on two specific profiles: the NREL S814 and NREL S826 profiles, at different Reynold’s numbers. These are two very similar profiles in utility and shape but differ in their thickness. This fact is used to ascertain the effect that thickness of an airfoil has on preventing surface fouling based performance degradation. Surface fouling has been modeled as a roughness at the leading edge of the profile. This is assumed to cause enough flow transition so as to simulate roughness over the entire profile. CFD simulations have been used to perform the analysis and initial results have been validated with experimental data. The accuracy of turbulence models in predicting normal and surface fouled conditions has been assessed. The performance parameters that have been considered are the lift, drag, moment coefficients and the drag to lift ratio. VL - 4 IS - 5-1 ER -
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