Analysis of the efficiency of MHD cycle supported by nanosecond pulsed discharge pre-ionization

A. Yu Starikovskiy, N. L. Aleksandrov, M. N. Shneider

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A numerical analysis of plasma generation by a nanosecond pulsed discharge in a strong magnetic field was performed. A 2D model of the plasma formation and decay in magnetohydrodynamic (MHD) channel has been elaborated. A comparison with experimental results demonstrates good agreement between calculated and measured plasma distribution in the channel. Preliminary analysis of the efficiency of the MHD-generator based on the nanosecond dielectric barrier discharge flow pre-ionization shows that the ratio of the power required to maintain ionization in the flow to the power extracted from the flow in MHD process is ∼3% for an ideal Faraday MHD generator with segmented electrodes with BY ∼ 5 T and supersonic flow speed uZ ∼ 1600 m s−1. Such a high energy efficiency of the generator allows us to consider this concept of the generator as promising for energy generation and flow control.

Original languageEnglish (US)
Article number035005
JournalPlasma Sources Science and Technology
Issue number3
StatePublished - Mar 2023

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


  • dielectric barrier discharge
  • electron energy distribution function
  • Hall parameter
  • MHD generator
  • nanosecond discharge
  • nonequilibrium plasma
  • supersonic flow


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