An advanced particle-in-cell (PIC) approach for electrospray simulation in a colloid thruster using molecular dynamics simulation results

Pengxiang Wang, Arnaud Borner, Zheng Li, Deborah A. Levin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the present work, a parallel Particle-in-Cell (PIC) code is developed to simulate a plasma without the consideration of particle collisions. The PIC solver is based on Poisson's equation and the assumption of no magnetic fields. The Poisson equation is discretized by the finite difference method and the corresponding linear equations are solved within the framework of PETSc. The PIC solver is used to carry out an electrospray simulation of a colloid thruster. Molecular dynamics simulation results of the EMIM+ and BF-4 ionic liquid extrusion are used as an inlet source in the PIC simulations. Number density distributions of species, thrust and specific impulse are computed for the electrospray. Particle collisions will be considered in our future work for an accurate quantification of contamination, erosion and spacecraft charging.

Original languageEnglish (US)
Title of host publication43rd AIAA Thermophysics Conference 2012
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101861
DOIs
StatePublished - 2012
Externally publishedYes
Event43rd AIAA Thermophysics Conference 2012 - New Orleans, LA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

Name43rd AIAA Thermophysics Conference 2012

Other

Other43rd AIAA Thermophysics Conference 2012
CountryUnited States
CityNew Orleans, LA
Period6/25/126/28/12

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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