What is it about?
A virtual vortex generator is an active flow control device, which can produce the same effects as the passive vortex generator on the wing. In this paper, the vortex-generator-type plasma actuator is used as the virtual vortex generator, and the flow control effects over the wing are discussed.
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Why is it important?
A general vortex generator on the wing is a device to make the flow over the wing turbulent through the vortex generation. Then, the turbulent flow can delay the separation flow from the wing surface. However, the vortex generator becomes one of the reasons for the drag increase of the airplane. The virtual vortex generator can actively produce the same effect as the general vortex generator, resulting in no drag increase.
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This page is a summary of: Mechanisms for Turbulent-Separation-Control at Reynolds Number of 1.6×106 using Vortex-Generator-Type Plasma Actuators - Comparison with Spanwise-Type Plasma Actuators, June 2022, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2022-3849.
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