Three-dimensional particle simulation of the plume of a pulsed plasma thruster
作者： Z Qian , Z Du , P Wang
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摘要: AbstractThe plume characteristics of a pulsed plasma thruster (PPT) are considered necessary in the evaluation plume/spacecraft interactions. In this article, rarefied laboratory PPT is characterized. First, three-dimensional (3D) physical model with boundary conditions presented. Then, particle-in-cell and direct simulation Monte-Carlo hybrid methods employed to study flow field. The profiles density potential their variations versus time analysed. Also, computational results compared experiment data as well from existing two-dimensional (2D) simulations. comparisons show that can predict electron both parallel perpendicular planes. It also shown 3D predictions more accurate than those 2D model. Analysis backflow indicates less one thousandth mass released solid propellant enters b...
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