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Vortex-generating pieces on the rotor blade to increase the maximum lift by delaying the generation of large vibration pitching moments
Vortex-generating pieces on the rotor blade to increase the maximum lift by delaying the generation of large vibration pitching moments
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机译:转子叶片上的涡流产生件通过延迟大的振动俯仰力矩的产生来增加最大升力
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摘要
An airborne mobile platform generally includes a plurality of rotating rotor blades operating in an airflow that forms a boundary layer on each of the rotor blades. At least one of the rotor blades includes a section that encounters the airflow that includes an unsteady subsonic airflow having at least a varying angle of attack. At least one of the rotor blades also includes one or more vortex generators on the at least one of the rotor blades that generate a vortex that interacts with the boundary layer to at least delay an onset of separation of the boundary layer, to increase a value of an unsteady maximum lift coefficient and to reduce a value of an unsteady pitching moment coefficient for the section.
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