Читать книгу Wind Energy Handbook - Michael Barton Graham - Страница 113

There are a number of small devices that can be added (and sometimes are) to existing wind turbine blades post‐design without compromising the blade structural performance. These devices have often been derived from aircraft usage and are usually incorporated either to improve performance that has turned out to be below the designed level or, more often, to provide additional performance beyond the intended where circumstances dictate. An example of the latter is the desirability of increasing the design lift coefficient for a turbine blade that is to be operated in significantly reduced air density due to the altitude of the wind turbine site.