caa a22 4500 606197877 CHVBK 20210128100931.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00348-015-1928-4 doi (NATIONALLICENCE)springer-10.1007/s00348-015-1928-4 Plasma control of shock wave configuration in off-design mode of M =2 inlet [Elektronische Daten] [Francois Falempin, Alexander Firsov, Dmitry Yarantsev, Marat Goldfeld, Konstantin Timofeev, Sergey Leonov] The objective of this work was to study the steering effect of a weakly ionized plasma on a supersonic flow structure in a two-dimensional aerodynamic configuration with a three-shock compression ramp in an off-design operational mode. Experiments were performed in wind tunnel T-313 of ITAM SB RAS, with the model air inlet designed for operation at a flow of Mach number M=2. The inlet was tested at M=2, 2.5, and 3 and with Re=(25-36)×106/m and an angle of attack AoA=0°, 5°, and 8°. For the regulation of the inlet characteristics, a plasma generator with electrical power W pl=2-10kW was flush-mounted upstream of the compression ramp. A significant plasma effect on the shock configuration at the inlet and on the flow parameters after air compression is considered. It is shown that the main shock wave angle is controllable by means of the plasma power magnitude and, therefore, can be accurately adjusted to the cowl lip of an inlet with a fixed geometry. An additional plasma effect has been demonstrated through a notable increase in the pressure recovery coefficient in a flowpass extension behind the inlet because of an nearly isentropic pattern of flow compression with the plasma turned on. Numerical simulation brings out the details of 3D distribution of the flow structure and parameters throughout the model at thermal energy deposition in inlet near the compression surfaces. We conclude that the plasma-based technique may be a feasible method for expanding supersonic inlet operational limits. Springer-Verlag Berlin Heidelberg, 2015 Falempin Francois MBDA-France, 1, Avenue Réaumur, 92358, Le Plessis-Robinson Cedex, France aut Firsov Alexander JIHT RAS, Izhorskaya Street, 13 bld2, 125412, Moscow, Russia aut Yarantsev Dmitry JIHT RAS, Izhorskaya Street, 13 bld2, 125412, Moscow, Russia aut Goldfeld Marat ITAM SB RAS, Institutskaya Street, 4/1, 630090, Novosibirsk, Russia aut Timofeev Konstantin ITAM SB RAS, Institutskaya Street, 4/1, 630090, Novosibirsk, Russia aut Leonov Sergey University of Notre Dame, 46556, Notre Dame, IN, USA aut Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-10 0723-4864 56:3<1 2015 56 348 https://doi.org/10.1007/s00348-015-1928-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-1928-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Falempin Francois MBDA-France, 1, Avenue Réaumur, 92358, Le Plessis-Robinson Cedex, France aut NATIONALLICENCE 700 1- Firsov Alexander JIHT RAS, Izhorskaya Street, 13 bld2, 125412, Moscow, Russia aut NATIONALLICENCE 700 1- Yarantsev Dmitry JIHT RAS, Izhorskaya Street, 13 bld2, 125412, Moscow, Russia aut NATIONALLICENCE 700 1- Goldfeld Marat ITAM SB RAS, Institutskaya Street, 4/1, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Timofeev Konstantin ITAM SB RAS, Institutskaya Street, 4/1, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Leonov Sergey University of Notre Dame, 46556, Notre Dame, IN, USA aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-10 0723-4864 56:3<1 2015 56 348