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Streamwise and spanwise plasma actuators for flow-induced cavity noise control

Huang, Xun and Zhang, Xin (2008) Streamwise and spanwise plasma actuators for flow-induced cavity noise control Physics of Fluids, 20, (3), 037101-[10pp]. (doi:10.1063/1.2890448).

Record type: Article


Plasma actuators operating in atmospheric air can induce a body force through collisions between electrically charged particles and neutral air molecules by an externally applied electric field. The fast response and the simple structure make the plasma actuator a promising option in aerospace applications. In this work, experiments were performed with several alternative current excited plasma (streamwise and spanwise) actuators to control flow-induced noise from a cavity. It was found that the streamwise actuator induced three-dimensional variations in the shear layer. The spanwise actuator, however, has little influence on the global flow field. As a result, the streamwise actuator is more effective than the spanwise actuator in cavity noise attenuation.

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Published date: 12 March 2008
Organisations: Aerodynamics & Flight Mechanics


Local EPrints ID: 50718
ISSN: 1070-6631
PURE UUID: 899f4d02-12fd-49d9-bf93-b62f0d77056c

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Date deposited: 17 Mar 2008
Last modified: 17 Jul 2017 14:50

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