NDLI: Local effect of electric and magnetic fields on the position of an attached shock in a supersonic diffuser

Content Provider	Springer Nature Link
Author	Bobashev, S. V. Vasil’eva, R. V. Erofeev, A. V. Lapushkina, T. A. Poniaev, S. A. Wie, D. M.
Copyright Year	2003
Abstract	Effective ways for controlling shock wave configurations by means of external actions are sought. One such way is a local effect of electric and magnetic fields. In this paper, the local effect of external fields is implemented by current localization in a limited region of a diffuser. The experiment is carried out in a diffuser providing the complete internal compression of the gas with a Mach number at the inlet M=4.3. As a working medium, a xenon plasma is used. The plasma flow is formed in a shock tube equipped with an accelerating nozzle. Two ways of current localization are tested. In the first one, the diffuser inlet is a short channel of Faraday generator type. In this case, the ponderomotive force basically decelerates or accelerates the flow depending on the direction of the electric field. In the second way, the current flows through a narrow near-wall region between adjacent electrodes. In this case, the ponderomotive force compresses or expands the gas. In both cases, it is shown that the angle of an attached shock due to MHD interaction can be both decreased and increased. The central problem with the MHD control of shock waves is near-electrode and near-wall phenomena.
Starting Page	177
Ending Page	184
Page Count	8
File Format	PDF
ISSN	10637842
Journal	Technical Physics
Volume Number	48
Issue Number	2
e-ISSN	10906525
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2003-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics, Fluids, Thermodynamics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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