Experimental Investigation of using Plasma Actuators as Virtual Gurney Flap

Mojarrad, Bahareh; Oveisi, Saeed; Kazemi, Mostafa; Mani, Mahmoud

doi:10.22034/jast.2021.297217.1085

Document Type : Original Article

Authors

¹ DANA Aerodynamic Laboratory, Amirkabir University of Technology

² Faculty of Aerospace Engineering, Amirkabir University of Technology

https://doi.org/10.22034/jast.2021.297217.1085

Abstract

The primary objective of this study was to demonstrate how plasma actuators could be used to discharge a perpendicular dielectric barrier as a virtual Gurney flap. This study utilized wind tunnel experiments on a flat plate airfoil. Each experiment is conducted at two different free flow velocities of ten and twenty meters per second. To study and extract the aerodynamic phenomena generated by plasma actuators and to compare them to the Gurney phenomena of a physical flap, velocity profiles in the model sequence were measured using a hot wire flow meter in two different longitudinal positions relative to the model. All experiments were conducted from five distinct vantage points, 0, 2, 4, 6, and 8, and plasma actuators were activated in two distinct settings to extract concepts under a variety of conditions. Wind tunnel experiments indicate that downward sequence transfer occurs when plasma actuators are used. Additionally, there are two distinct types of vortex shedding on the model's back: one that resembles Karman vortex shedding and another that occurs below the model. The observation of velocity profiles demonstrates that the deformation of the sequence caused by the use of plasma actuators is very similar to that caused by an airfoil sequence equipped with a physical Gurney flap.

Keywords

20.1001.1.17352134.2021.14.1.9.0

Main Subjects

Aerodynamic

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Journal of Aerospace Science and Technology

Experimental Investigation of using Plasma Actuators as Virtual Gurney Flap

References

References

Volume 14, Issue 1
June 2021
Pages 103-110

Experimental Investigation of using Plasma Actuators as Virtual Gurney Flap

References

References

Volume 14, Issue 1June 2021Pages 103-110

Volume 14, Issue 1
June 2021
Pages 103-110