Hannover 2010 – scientific programme
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P: Fachverband Plasmaphysik
P 17: Low Temperature Plasmas II
P 17.4: Talk
Thursday, March 11, 2010, 15:20–15:35, B 305
Vorticex Created by Plasma Actuator — Eduard Son1 and •Dmitry Tereshonok2 — 1Institute of High Temperature, Moscow, Russia — 2Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
In the paper plasma flow control is presented. Flow control can be performed by four types of actuators - mechanical, acoustical, thermal and plasma. Last two actuators have an advantages to mechanical and acoustical: quick response, usability, absence of mechanical appliances. Plasma actuator produces the vorticity by interaction of the total electric field and space charge gradient. The vorticity of the thermal actuator are created by vectors production of pressure gradient and temperature. A plasma and thermal vorticity produced by electric discharge on the surface is proved by experimentally. Theoretical analysis of an atmospheric electric discharge shows that problem can be splitted on plasma and hydrodynamics equations because all processes can be divided into 3 types - fast, slow and residual time order. Electron distribution function is found from solution of Boltzmann equation two-term approximation with elastic and inelastic processes - excitation of rotation, vibration, electronic molecular states, dissociation, direct ionization. Crossection of processes are taken from overview last years. After the calculation of a different constant rates in plasma discharge vortex generation has been modeled.