Abstract

$Numerical modeling of the Pulsed Inductive Thruster, (PIT) exercising the magnetohydrodynamics code, MACH2 aims to provide bilateral validation of the thruster's measured performance and the code's capability of capturing the pertinent physical processes. Computed impulse values for helium and argon propellants demonstrate excellent correlation to the experimental data for a range of energy levels and propellant-mass values. Quantitative energy deposition analysis confirms the thruster’s demonstrated constant-efficiency operation and captures the experimentally-observed, critical-mass phenomenon. An idealized model for these energy levels and propellants expands the validity of the aforementioned to other propellants and identifies the PIT’s unique operation with ammonia propellant.

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