TY - JOUR

T1 - Effect of Electric Discharges in Magnetic Field on Hypersonic Flow around Bodies

AU - Fomichev, V. P.

AU - Yadrenkin, M. A.

N1 - Funding Information: The study was carried out at the expense of a grant from the Russian Science Foundation (project No. 17-19-01375). Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2018/11/19

Y1 - 2018/11/19

N2 - To investigate the possibilities of magnetohydrodynamic (MHD) effects on a hypersonic flow structure, it is necessary to ionize the gas flow. It is possible to create a local region of conductivity of the flow using electrical discharges under experimental conditions. The paper considers the MHD interaction of a high-speed air flow and electrical discharges (high-voltage pulse and high-frequency) in a homogeneous magnetic field when flowing around test models. It is shown that the use of discharges in a magnetic field makes it possible to significantly change the shock-wave structure of the flow near a streamlined surface: to change the angle of the oblique shock, to generate new shock, to transform attached oblique shock to the bow shock. Systematization of the obtained data on the value of the hydromagnetic interaction parameter S characterizing the strength character of the observed effects is performed. Thus, S < 0.05 corresponds to the weak MHD-interaction, S = 0,05-0,15 - moderate MHD-interaction, S > 0.15 - strong MHD-interaction.

AB - To investigate the possibilities of magnetohydrodynamic (MHD) effects on a hypersonic flow structure, it is necessary to ionize the gas flow. It is possible to create a local region of conductivity of the flow using electrical discharges under experimental conditions. The paper considers the MHD interaction of a high-speed air flow and electrical discharges (high-voltage pulse and high-frequency) in a homogeneous magnetic field when flowing around test models. It is shown that the use of discharges in a magnetic field makes it possible to significantly change the shock-wave structure of the flow near a streamlined surface: to change the angle of the oblique shock, to generate new shock, to transform attached oblique shock to the bow shock. Systematization of the obtained data on the value of the hydromagnetic interaction parameter S characterizing the strength character of the observed effects is performed. Thus, S < 0.05 corresponds to the weak MHD-interaction, S = 0,05-0,15 - moderate MHD-interaction, S > 0.15 - strong MHD-interaction.

UR - http://www.scopus.com/inward/record.url?scp=85058296079&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1112/1/012016

DO - 10.1088/1742-6596/1112/1/012016

M3 - Conference article

AN - SCOPUS:85058296079

VL - 1112

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012016

T2 - 17th International Workshop on Magneto-Plasma Aerodynamics 2018

Y2 - 17 April 2018 through 19 April 2018

ER -