Computational analysis of wind-turbine blade rain erosion

Alessio Castorrini; Alessandro Corsini; Franco Rispoli; Paolo Venturini; Kenji Takizawa; Tayfun E. Tezduyar

doi:10.1016/j.compfluid.2016.08.013

Computational analysis of wind-turbine blade rain erosion

Alessio Castorrini, Alessandro Corsini, Franco Rispoli, Paolo Venturini, Kenji Takizawa, Tayfun E. Tezduyar

Research output: Contribution to journal › Article

43 Citations (Scopus)

Abstract

Wind-turbine blade rain erosion damage could be significant if the blades are not protected. This damage would not typically influence the structural integrity of the blades, but it could degrade the aerodynamic performance and therefore the power production. We present computational analysis of rain erosion in wind-turbine blades. The main components of the method used in the analysis are the Streamline-Upwind/Petrov–Galerkin (SUPG) and Pressure-Stabilizing/Petrov–Galerkin (PSPG) stabilizations, a finite element particle-cloud tracking method, and an erosion model. The turbulent-flow nature of the analysis is handled with a RANS model and SUPG/PSPG stabilization, the particle-cloud trajectories are calculated based on the computed flow field and closure models defined for the turbulent dispersion of particles, and one-way dependence is assumed between the flow and particle dynamics. The erosion patterns are then computed based on the particle-cloud data. The patterns are consistent with those observed in the actual wind turbines.

Original language	English
Pages (from-to)	175-183
Number of pages	9
Journal	Computers and Fluids
Volume	141
DOIs	https://doi.org/10.1016/j.compfluid.2016.08.013
Publication status	Published - 2016 Dec 15

Keywords

Blades
PCT model
Rain erosion
SUPG and PSPG methods
Wind turbine

ASJC Scopus subject areas

Computer Science(all)
Engineering(all)

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Castorrini, A., Corsini, A., Rispoli, F., Venturini, P., Takizawa, K., & Tezduyar, T. E. (2016). Computational analysis of wind-turbine blade rain erosion. Computers and Fluids, 141, 175-183. https://doi.org/10.1016/j.compfluid.2016.08.013

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abstract = "Wind-turbine blade rain erosion damage could be significant if the blades are not protected. This damage would not typically influence the structural integrity of the blades, but it could degrade the aerodynamic performance and therefore the power production. We present computational analysis of rain erosion in wind-turbine blades. The main components of the method used in the analysis are the Streamline-Upwind/Petrov–Galerkin (SUPG) and Pressure-Stabilizing/Petrov–Galerkin (PSPG) stabilizations, a finite element particle-cloud tracking method, and an erosion model. The turbulent-flow nature of the analysis is handled with a RANS model and SUPG/PSPG stabilization, the particle-cloud trajectories are calculated based on the computed flow field and closure models defined for the turbulent dispersion of particles, and one-way dependence is assumed between the flow and particle dynamics. The erosion patterns are then computed based on the particle-cloud data. The patterns are consistent with those observed in the actual wind turbines.",

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AU - Rispoli, Franco

AU - Venturini, Paolo

AU - Takizawa, Kenji

AU - Tezduyar, Tayfun E.

PY - 2016/12/15

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N2 - Wind-turbine blade rain erosion damage could be significant if the blades are not protected. This damage would not typically influence the structural integrity of the blades, but it could degrade the aerodynamic performance and therefore the power production. We present computational analysis of rain erosion in wind-turbine blades. The main components of the method used in the analysis are the Streamline-Upwind/Petrov–Galerkin (SUPG) and Pressure-Stabilizing/Petrov–Galerkin (PSPG) stabilizations, a finite element particle-cloud tracking method, and an erosion model. The turbulent-flow nature of the analysis is handled with a RANS model and SUPG/PSPG stabilization, the particle-cloud trajectories are calculated based on the computed flow field and closure models defined for the turbulent dispersion of particles, and one-way dependence is assumed between the flow and particle dynamics. The erosion patterns are then computed based on the particle-cloud data. The patterns are consistent with those observed in the actual wind turbines.

AB - Wind-turbine blade rain erosion damage could be significant if the blades are not protected. This damage would not typically influence the structural integrity of the blades, but it could degrade the aerodynamic performance and therefore the power production. We present computational analysis of rain erosion in wind-turbine blades. The main components of the method used in the analysis are the Streamline-Upwind/Petrov–Galerkin (SUPG) and Pressure-Stabilizing/Petrov–Galerkin (PSPG) stabilizations, a finite element particle-cloud tracking method, and an erosion model. The turbulent-flow nature of the analysis is handled with a RANS model and SUPG/PSPG stabilization, the particle-cloud trajectories are calculated based on the computed flow field and closure models defined for the turbulent dispersion of particles, and one-way dependence is assumed between the flow and particle dynamics. The erosion patterns are then computed based on the particle-cloud data. The patterns are consistent with those observed in the actual wind turbines.

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