Scaling Design and Experimental Study on Hall Thrusters with Curved Magnetic Field |
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Authors: | Y J Ding D R Yu D C Jia G J Yan H Li |
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Institution: | Harbin Institute of Technology, Harbin, Heilongjiang Province China |
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Abstract: | The existing scaling theories of Hall thrusters are based on the hypothesis of a one‐dimensional straight magnetic field, which is not suitable for the design of modern thrusters with a two‐dimensional curved magnetic field. In this paper, using the equation analysis method, we derive new similarity criterions in a curved magnetic field by analyzing the momentum equations of charged particles; consequently, we propose a new modeling design method for Hall thrusters with a constant discharge voltage. This method is further validated by experiments. A designed model with a power of 1.5 kW is made based on our proposed method from a prototype model with a power of 1 kW. The experimental results demonstrate that these two thrusters have little differences in performance and physical processes as expected from the scaling. Therefore, our method is well suited for designing a Hall thruster with a curved magnetic field (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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Keywords: | Hall thruster scaling design curved magnetic field |
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