Numerical Modeling of Pulsed Plasma Thruster Performance with Teflon Ablation and Ionization

다국어 초록 (Multilingual Abstract)

A numerical model employing the ablation rate and ionization of Teflon is developed to analyze pulsed plasma thruster (PPT) performance. A one-dimensional lumped circuit analysis model is implemented to calculate the discharge current. The Saha equation and Keidar Teflon ablation model are used to analyze the ionization of carbon and fluorine molecules produced by the Teflon gas. The numerical model also predicts the electron temperature distribution and simplified plasma shape during the discharge. Numerical simulation results with different voltage conditions compare reasonably well with experimental data. The Teflon gas flux reaches its maximum value at the maximum electron temperature and then gradually decays. The multivalent ions are investigated for PPT operation.

참고문헌 (Reference)

1 조민경, "펄스형 플라즈마 추력기 성능해석을 위한 테프론의 이온화 비정상 모델링 연구" 한국항공우주학회 45 (45): 697-703, 2017

2 Krinberg IA, "Three modes of vacuum arc plasma expansion in the absence and presence of a magnetic field" 33 (33): 1548-1552, 2005

3 조민영, "Theoretical Modeling of Pulsed Plasma Thruster Performance with Teflon Ablation" 한국항공우주학회 18 (18): 138-143, 2017

4 Shaw PV, "Pulsed plasma thrusters for small satellites" University of Surrey 2011

5 Gatsonis NA, "Prospects of plasma flow modeling and control for micro pulsed plasma thrusters" 2005

6 Keider M, "Plasma engineering: application from aerospace to bio- and nanotechnology" Elsevier 73-78, 2013

7 Koizumi H, "Plasma acceleration processes in an ablative pulsed plasma thruster" 14 (14): 033506-, 2007

8 Keidar M, "Onthemodel ofTeflon ablation in an ablation controlled discharge" 34 (34): 1675-1677, 2001

9 MacGillivray J, "MACH3 : a chssi code for computational magneto-hydrodynamics of general materials in generalized coordinates" 228-235, 2003

10 Hippler R, "Low temperature plasmas: fundamentals, technologies, and techniques, vol1" Wiley-VCH 1-2, 2008

11 Schonherr T, "Investigation of discharge arc phenomena in ablative PPT" 2015

12 Awadallah RS, "Electromagnetic emission modeling for micro pulsed plasma thrusters" 2005

13 Surzhikov ST, "Asplitting method for unsteady 3-D magneto-gasdynamic flows applied to pulsed plasma thruster plumes" 2001

14 Yang L, "Ablation and ionization phenomenon in a Teflon pulsed plasma thruster" 2015

15 Rhodes R, "A numerical study of a pulsed plasma thruster" 2007