Simulation of a helicon plasma source in a magnetoplasma rocket engine

The helicon plasma source, which generates high thrust and high impulse, is of vital importance for magnetoplasma rocket engines. In this work, a multi-component, two-dimensional, axisymmetric fluid model coupled with an electromagnetic field was developed to model the helicon discharge. The simulation results demonstrate that: (ⅰ) the discharge mode changes twice—each conversion is accompanied by a plasma density jump and an electron temperature peak in the discharge; (ⅱ) when the input current increases, the plasma density increases, and ionization occurs faster; (ⅲ) the background magnetic field clearly enhances the discharge; (ⅳ) the plasma density may be smaller if the discharge has not entered the wave mode.