Computational analysis of horizontal-axis wind turbine by different RANS turbulence models
Abstract
Numerous numerical investigations of isolated horizontal-axis wind turbine rotor consisting
of three blades have been performed in ANSYS FLUENT 16.2. These flows are three-dimensional,
complex, unsteady, turbulent and vortical with several interesting flow phenomena,
such as flow separation and dynamic stalling, appearing. Flow field is modeled by Reynolds
Averaged Navier-Stokes (RANS) equations. Two different turbulent models are tried: Spalart-
Allmaras and k-ω SST. For resolving the rotational motion of the blades both Moving frame of
reference (MFR) and Sliding mesh (SM) approaches were employed. Both computational
approaches are briefly explained. Obtained numerical results are compared to available
experimental data. Presented results include fluid flow visualizations in the form of pressure and
velocity contours, sectional pressure distributions and values of power and thrust force
coefficients for a range of operational regimes. Although obtained numerical results var...y in
accuracy, all presented numerical settings seem to slightly underestimate the global wind turbine
parameters (power and thrust force coefficients). Turbulence can greatly affect the wind turbine
aerodynamics and should be modeled with care.
Keywords:
wind turbine / CFD / RANS / power coefficient / thrust force coefficientSource:
Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017, 2017, M2c-Publisher:
- Belgrade : Serbian Society of Mechanics
Funding / projects:
- Research and Development of Advanced Design Approaches for High Performance Composite Rotor Blades (RS-MESTD-Technological Development (TD or TR)-35035)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Svorcan, Jelena AU - Trivković, Zorana AU - Ivanov, Toni PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4305 AB - Numerous numerical investigations of isolated horizontal-axis wind turbine rotor consisting of three blades have been performed in ANSYS FLUENT 16.2. These flows are three-dimensional, complex, unsteady, turbulent and vortical with several interesting flow phenomena, such as flow separation and dynamic stalling, appearing. Flow field is modeled by Reynolds Averaged Navier-Stokes (RANS) equations. Two different turbulent models are tried: Spalart- Allmaras and k-ω SST. For resolving the rotational motion of the blades both Moving frame of reference (MFR) and Sliding mesh (SM) approaches were employed. Both computational approaches are briefly explained. Obtained numerical results are compared to available experimental data. Presented results include fluid flow visualizations in the form of pressure and velocity contours, sectional pressure distributions and values of power and thrust force coefficients for a range of operational regimes. Although obtained numerical results vary in accuracy, all presented numerical settings seem to slightly underestimate the global wind turbine parameters (power and thrust force coefficients). Turbulence can greatly affect the wind turbine aerodynamics and should be modeled with care. PB - Belgrade : Serbian Society of Mechanics C3 - Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017 T1 - Computational analysis of horizontal-axis wind turbine by different RANS turbulence models SP - M2c UR - https://hdl.handle.net/21.15107/rcub_machinery_4305 ER -
@conference{ author = "Svorcan, Jelena and Trivković, Zorana and Ivanov, Toni", year = "2017", abstract = "Numerous numerical investigations of isolated horizontal-axis wind turbine rotor consisting of three blades have been performed in ANSYS FLUENT 16.2. These flows are three-dimensional, complex, unsteady, turbulent and vortical with several interesting flow phenomena, such as flow separation and dynamic stalling, appearing. Flow field is modeled by Reynolds Averaged Navier-Stokes (RANS) equations. Two different turbulent models are tried: Spalart- Allmaras and k-ω SST. For resolving the rotational motion of the blades both Moving frame of reference (MFR) and Sliding mesh (SM) approaches were employed. Both computational approaches are briefly explained. Obtained numerical results are compared to available experimental data. Presented results include fluid flow visualizations in the form of pressure and velocity contours, sectional pressure distributions and values of power and thrust force coefficients for a range of operational regimes. Although obtained numerical results vary in accuracy, all presented numerical settings seem to slightly underestimate the global wind turbine parameters (power and thrust force coefficients). Turbulence can greatly affect the wind turbine aerodynamics and should be modeled with care.", publisher = "Belgrade : Serbian Society of Mechanics", journal = "Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017", title = "Computational analysis of horizontal-axis wind turbine by different RANS turbulence models", pages = "M2c", url = "https://hdl.handle.net/21.15107/rcub_machinery_4305" }
Svorcan, J., Trivković, Z.,& Ivanov, T.. (2017). Computational analysis of horizontal-axis wind turbine by different RANS turbulence models. in Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017 Belgrade : Serbian Society of Mechanics., M2c. https://hdl.handle.net/21.15107/rcub_machinery_4305
Svorcan J, Trivković Z, Ivanov T. Computational analysis of horizontal-axis wind turbine by different RANS turbulence models. in Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017. 2017;:M2c. https://hdl.handle.net/21.15107/rcub_machinery_4305 .
Svorcan, Jelena, Trivković, Zorana, Ivanov, Toni, "Computational analysis of horizontal-axis wind turbine by different RANS turbulence models" in Proceedings / 6th International Congress of Serbian Society of Mechanics Mountain Tara, Serbia, June 19-21, 2017 (2017):M2c, https://hdl.handle.net/21.15107/rcub_machinery_4305 .