Berlin 2014 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 14: Poster Session - Theory and Modelling

P 14.14: Poster

Dienstag, 18. März 2014, 16:30–18:30, SPA Foyer

Thermal Simulation of a Radio Frequency Ion Thruster — •Waldemar Gärtner and Bruno Meyer — I Physikalisches Institut Justus Liebig Universität, Giessen, Germany

Common missions have a high requirement on the power consumption of all parts of a spacecraft. Since the thermal behavior of the thruster play a great role for the power absorption it is necessary to optimize the thermal design. For the thermal modeling the program COMSOL Multiphysics is used. To investigate the power losses in the thruster an electromagnetic simulation was built up. And then to describe the thermal behavior a 3D thermal model was produced. The thermal simulation considers the thermal radiation between the thruster surfaces and radiation to the test facility walls. We also include in the model thermal conductance of the parts and between the parts.

In current work results of thermal modeling for the small RIT will be presented. Comparison between simulation and experimental data will be given.

Evaluation of the discharge plasma parameters can be done with using of reverse thermal simulation. It seems to be interested for future investigation on non-contact plasma diagnostic.