Numerical modeling of ISS thruster plume induced contamination environment

Alina A. Alexeenko; Dean C. Wadsworth; Sergey F. Gimelshein; Andrew D. Ketsdever

doi:10.1117/12.559059

15 October 2004 Numerical modeling of ISS thruster plume induced contamination environment

Alina A. Alexeenko, Dean C. Wadsworth, Sergey F. Gimelshein, Andrew D. Ketsdever

Proceedings Volume 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control; (2004) https://doi.org/10.1117/12.559059
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The molecular and liquid droplet thruster-induced contamination is studied numerically for a 130 N ISS bipropellant thruster using Navier-Stokes and DSMC flow solvers and a Lagrangian particle tracking. The molecular sources contributing to the inorganic components of the plume backflow contaminant are estimated, and a qualitative characterization of the liquid droplet contribution to the organic part of contaminant is conducted. The total calculated mass flux of the molecular contaminant in the backflow region compares very well with the experimental measurement on-board of Mir space station. The computations show that approximately 20 to 30 per cent of the droplets formed at the break up of the unburned propellant film at the exit can contribute to the organic part of the backflow contaminant.

Citation Download Citation

Alina A. Alexeenko, Dean C. Wadsworth, Sergey F. Gimelshein, and Andrew D. Ketsdever "Numerical modeling of ISS thruster plume induced contamination environment", Proc. SPIE 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control, (15 October 2004); https://doi.org/10.1117/12.559059

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