edge vortex

edge vortex

edge vortexclick for a larger image
An airflow that lies midway between a steady streamline flow and an unsteady 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 controlled separated flow.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Known as a "leading edge vortex", or LEV, the micro-storm of air turbulence forces the animal upwards, it was reported in the journal Science.
The additional features that the naval version would have when compared to the other version of LCA are the LEVCON (Leading Edge Vortex Control Surface) to reduce the forward speed of the aircraft during carrier landing, Telescopic Landing Gear with high sink rate, Arrester Hook for deck recovery and fuel dump system for emergency deck recovery.