Features of spatial distribution of the parameters on the initial section of a supersonic plasma jet, created by pulsed discharge in a capillary with ablative wall

31st International Conference on Equations of State for Matter

Ageev, A.G.^1 ; Bityurin, V.A.^1 ; Chinnov, V.F.^1 ; Efimov, A.V.^1 ; Pashchina, A.S.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow

125412, Russia^1

关键词: Emission properties;    Molecular components;    Pulsed discharge;    Spatial domains;    Spectral components;    Spectroscopic studies;    Supersonic jets;    Supersonic plasma;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012201/pdf
DOI  :  10.1088/1742-6596/774/1/012201

来源: IOP

【 摘 要 】

The results of spectroscopic studies of the initial section of the supersonic plasma jet created by a pulsed discharge in the capillary with the ablative wall are presented. Features of the spatial distribution of the electron density and the intensity of the spectral components, which, in particular, caused by the high electron temperature in the hot central zone, exceeding the "normal" temperature, as well as significant non-isobaricity at the initial section of supersonic jet are revealed. The presence of the molecular components exhibiting their emission properties at the plasma jet periphery permit us to estimate the parameters of the plasma in the spatial domain, where "detached" shock waves of the supersonic jet are created.