Wind Turbine Aerodynamic Performance by Lifting Line Method
The vortex model of propellers is modified and applied to the high-speed horizontal axis turbines. The turbine blades are replaced by lifting lines and trailing vortices which shed along the blade span. The model is not a free wake model, but it is still a nonlinear one which should be solved iterat...
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| Format: | Article |
| Language: | English |
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Wiley
1998-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X98000128 |
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| _version_ | 1832549664787791872 |
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| author | Horia Dumitrescu Vladimir Cardos |
| author_facet | Horia Dumitrescu Vladimir Cardos |
| author_sort | Horia Dumitrescu |
| collection | DOAJ |
| description | The vortex model of propellers is modified and applied to the high-speed horizontal axis turbines. The turbine blades are replaced by lifting lines and trailing vortices which shed along the blade span. The model is not a free wake model, but it is still a nonlinear one which should be solved iteratively. In addition to the regular case where the trailing vortices are constrained to distribute along a helical surface, another version, where each trailing vortex sheding from the blade grows as a free helical vortex line, is also included. Performance parameters are calculated by application of the Biot-Savart law along with the Kutta-Joukowski theorem. Predictions are, shown to compare favorably with existing numerical data from more involved free wake methods, but require less computational effort. Thereby, the present method may be a very useful tool for calculating the aerodynamic loads on horizontal-axis wind turbine blades. |
| format | Article |
| id | doaj-art-82381cbfc3814eeb8ba8591a9dd22c33 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 1998-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-82381cbfc3814eeb8ba8591a9dd22c332025-02-03T06:10:49ZengWileyInternational Journal of Rotating Machinery1023-621X1998-01-014314114910.1155/S1023621X98000128Wind Turbine Aerodynamic Performance by Lifting Line MethodHoria Dumitrescu0Vladimir Cardos1Institute of Applied Mathematics, Romanian Academy, Calea 13 Septembrie 13, P.O. Box 1-24, Bucharest R0-70700, RomaniaInstitute of Applied Mathematics, Romanian Academy, Calea 13 Septembrie 13, P.O. Box 1-24, Bucharest R0-70700, RomaniaThe vortex model of propellers is modified and applied to the high-speed horizontal axis turbines. The turbine blades are replaced by lifting lines and trailing vortices which shed along the blade span. The model is not a free wake model, but it is still a nonlinear one which should be solved iteratively. In addition to the regular case where the trailing vortices are constrained to distribute along a helical surface, another version, where each trailing vortex sheding from the blade grows as a free helical vortex line, is also included. Performance parameters are calculated by application of the Biot-Savart law along with the Kutta-Joukowski theorem. Predictions are, shown to compare favorably with existing numerical data from more involved free wake methods, but require less computational effort. Thereby, the present method may be a very useful tool for calculating the aerodynamic loads on horizontal-axis wind turbine blades.http://dx.doi.org/10.1155/S1023621X98000128Wind powerWind turbinesHAWT-rotorsBlade aerodynamicsLifting line theoryIncompressible flows. |
| spellingShingle | Horia Dumitrescu Vladimir Cardos Wind Turbine Aerodynamic Performance by Lifting Line Method International Journal of Rotating Machinery Wind power Wind turbines HAWT-rotors Blade aerodynamics Lifting line theory Incompressible flows. |
| title | Wind Turbine Aerodynamic Performance
by Lifting Line Method |
| title_full | Wind Turbine Aerodynamic Performance
by Lifting Line Method |
| title_fullStr | Wind Turbine Aerodynamic Performance
by Lifting Line Method |
| title_full_unstemmed | Wind Turbine Aerodynamic Performance
by Lifting Line Method |
| title_short | Wind Turbine Aerodynamic Performance
by Lifting Line Method |
| title_sort | wind turbine aerodynamic performance by lifting line method |
| topic | Wind power Wind turbines HAWT-rotors Blade aerodynamics Lifting line theory Incompressible flows. |
| url | http://dx.doi.org/10.1155/S1023621X98000128 |
| work_keys_str_mv | AT horiadumitrescu windturbineaerodynamicperformancebyliftinglinemethod AT vladimircardos windturbineaerodynamicperformancebyliftinglinemethod |