| 摘要 |
A rotor blade assembly is provided having an airflow modifying element for suppressing airflow noise caused by a drain hole. The rotor blade assembly includes at least one rotor blade including a body shell extending between a blade root and a blade tip. Further, the rotor blade includes at least one drain hole having a diameter. The drain hole is configured within the body shell of the rotor blade. At least one airflow modifying element is configured on the body shell a predetermined distance from the drain hole such that the airflow modifying element reduces airflow noise caused by the drain hole. In one embodiment, the predetermined distance is substantially equal to the diameter of the drain hole. |
