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Article

Future Directions for Electric Propulsion Research

Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48105, USA
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Aerospace 2020, 7(9), 120; https://doi.org/10.3390/aerospace7090120
Received: 7 July 2020 / Revised: 5 August 2020 / Accepted: 17 August 2020 / Published: 20 August 2020
(This article belongs to the Special Issue Electric Propulsion)
The research challenges for electric propulsion technologies are examined in the context of s-curve development cycles. It is shown that the need for research is driven both by the application as well as relative maturity of the technology. For flight qualified systems such as moderately-powered Hall thrusters and gridded ion thrusters, there are open questions related to testing fidelity and predictive modeling. For less developed technologies like large-scale electrospray arrays and pulsed inductive thrusters, the challenges include scalability and realizing theoretical performance. Strategies are discussed to address the challenges of both mature and developed technologies. With the aid of targeted numerical and experimental facility effects studies, the application of data-driven analyses, and the development of advanced power systems, many of these hurdles can be overcome in the near future. View Full-Text
Keywords: electric propulsion; Hall effect thruster; gridded ion thruster; electrospray; magnetic nozzle; pulsed inductive thruster electric propulsion; Hall effect thruster; gridded ion thruster; electrospray; magnetic nozzle; pulsed inductive thruster
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MDPI and ACS Style

Dale, E.; Jorns, B.; Gallimore, A. Future Directions for Electric Propulsion Research. Aerospace 2020, 7, 120. https://doi.org/10.3390/aerospace7090120

AMA Style

Dale E, Jorns B, Gallimore A. Future Directions for Electric Propulsion Research. Aerospace. 2020; 7(9):120. https://doi.org/10.3390/aerospace7090120

Chicago/Turabian Style

Dale, Ethan, Benjamin Jorns, and Alec Gallimore. 2020. "Future Directions for Electric Propulsion Research" Aerospace 7, no. 9: 120. https://doi.org/10.3390/aerospace7090120

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