Investigating the feasibility of electron manipulation scheme using a cold atmospheric plasma jet

Kim, Minkwan (2013) Investigating the feasibility of electron manipulation scheme using a cold atmospheric plasma jet. 44th AIAA Plasmadynamics and Lasers Conference, , San Diego, CA, United States. 24 - 27 Jun 2013. (doi:10.2514/6.2013-2892).

Record type: Conference or Workshop Item (Paper)

Abstract

During hypersonic ights, a vehicle experiences major difficulties in communication and heating, which are known as communication blackout and aerodynamic heating, respectively. Previously, a MHD based system is investigated to solve these difficulties using a Lorentz force which are called an ExB mitigation scheme and MHD heat shield. The capability of a MHD based system is limited by the strength of an applied magnetic field. In order to enhance a MHD effect, it is necessary to increase an electrical conductivity which can be achieved by increasing electron density through plasma generator. However, most of thermal plasma generators are not suitable for aerospace applications due to the power consumption. To overcome this technical limitation, thermal ionization methods can be replaced by low-temperature plasma generation system that is called a cold atmospheric plasma (CAP) jet. In this study, the feasibility of a CAP jet as a plasma source with the combination of a MHD system is investigated in hypersonic flows in terms of heat flux manipulation and signal attenuation.

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