leading-edge vortex

controlled separated flow

Controlled separation on a slender delta.An airflow that lies midway between a steady streamline (laminar) flow and an unsteady (turbulent) flow. The flow separates at sharp leading edges as a result of the boundary-layer effect but does not break down into a turbulent airflow. Instead strong vortices are formed, which generate lift. This kind of flow is prevalent in delta and swept wing plan forms, particularly at high angles of attack. Also known as a leading-edge vortex.

单词	leading-edge vortex
释义	leading-edge vortex controlled separated flow Controlled separation on a slender delta.An airflow that lies midway between a steady streamline (laminar) flow and an unsteady (turbulent) flow. The flow separates at sharp leading edges as a result of the boundary-layer effect but does not break down into a turbulent airflow. Instead strong vortices are formed, which generate lift. This kind of flow is prevalent in delta and swept wing plan forms, particularly at high angles of attack. Also known as a leading-edge vortex.
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