Efeito da descarga de barreira dielétrica no escoamento do ar sobre um cilindro / Effect of dielectric barrier discharge on the airflow around a cylinder

AUTOR(ES)

Ashraf El Droubi

FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

25/01/2012

RESUMO

Fluids in a dielectric barrier DBD glow discharge at atmospheric pressure attracted the interest of the communities of thermo and fluid dynamics as well as control. This dissertation investigates the effects of a plasma actuator operating at 8 kV and 4.4 kHz, on the Cp curve of a PVC cylinder in a low velocity airflow. The experiment was repeated with the actuator at various angles. The results show an acceleration of the flow accompanied with a delay of the flow separation. These effects were shown to be larger when the actuator was positioned at an angle closer to the region of separation.

ASSUNTO(S)

plasma actuator synthetic plasma jet atuador de plasma controle de escoamento dbd dbd descarga brilhante descarga de barreira dielétrica dielectric barrier discharge flow control glow discharge jato sintético de plasma

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