Numerical Investigations of Electromagnetic Oscillations and Turbulences in Hall Thrusters Using Two Fluid Approach

Abstract

The first part of the contributed chapter discuss the overview of electric propulsion technology and its requirement in different space missions. The technical terms specific impulse and thrust are explained with their relation to exhaust velocity. The shortcoming of the Hall thrusters and its erosion problems of the channel walls are also conveyed. The second part of the chapter discuss the various waves and electromagnetic instabilities propagating in a Hall thruster magnetized plasma. The dispersion relation for the azimuthal growing waves is derived analytically with the help of magnetohydrodynamics theory. It is depicted that the growth rate of the instability increases with magnetic field, electron drift velocity and collisional frequency, whereas it is decreases with the initial drift of the ions.

Plasma Waves and Rayleigh–Taylor Instability: Theory and Application

“…The physics of Hall thrusters and existing instabilities are reported in the references [110][111][112][113] the Hall thruster support both resistive and RTI. The electromagnetic and electromagnetic oscillation has been discussed in detail in the references [114][115][116][117][118][119].…”

Introductory Chapter: Recent Advances in Plasmas Physics

“…For instance, the Rayleigh-Taylor instability can lead to plasma mixing and turbulence, while the Kelvin-Helmholtz instability can cause plasma transport across magnetic field lines. Plasma has numerous industrial applications due to its unique properties such as high energy, high temperature, and chemical reactivity [3][4][5][6][7][8][9][10][11][12][13][14].…”