Model of pulsed electric discharge expansion in dense gas taking into account electron and radiative thermal conductivities. II. Energy balance and equation |
| |
Authors: | U Yusupaliev |
| |
Institution: | 1.Prokhorov General Physics Institute,Russian Academy of Sciences,Moscow,Russia |
| |
Abstract: | Using an ionization sensor, it was found that weakly ionized plasma with an ionization degree larger than 10−6 is formed under exposure to UV radiation of a high-current pulsed electric discharge in gas (air, nitrogen, xenon, and krypton)
at atmospheric pressure at a distance of ∼1.2–2.5 cm from the discharge boundary. It was shown that the structure of such
discharge includes, in addition to the discharge channel, a dense shell and a shock wave, also a region of weakly ionized
and excited gas before the shock wave front. The mechanism of discharge expansion in dense gas is ionization and heating of
gas involved in the discharge due to absorption of the UV energy flux from the discharge channel and the flux of the thermal
energy transferred from the discharge channel to the discharge shell due to electron thermal conductivity. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|