Shock-wave structure formation by nanosecond discharge in helium |
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| Authors: | I. A. Znamenskaya I. E. Ivanov I. A. Kryukov I. V. Mursenkova M. Yu. Timokhin |
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| Affiliation: | 1. Department of Physics, Moscow State University, Moscow, 119992, Russia
2. Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, 119526, Russia
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| Abstract: | We have experimentally studied and numerically simulated the shock-wave flow that arises as a result of the development of a system of microchannels of pulsed sliding surface discharge in helium at low pressure. Using numerical simulations based on a solution of the system of regularized Grad equations (R13) and Navier-Stokes equations, results obtained for various Knudsen numbers are compared and it is shown that the influence of rarefaction on the discharge-plasma-induced shock-wave flow is manifested in a transient regime at Kn = 10?1. |
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