Abstract
Abstract : While the Hall Effect Thruster is a relatively mature technology that has been flown in several missions, the physics of the processes governing the thruster dynamics are not yet completely understood. In particular, the so-called anomalous diffusion, a short term for the excessive electron conductivity both inside and outside of the thruster, remains an unclear phenomenon. It is commonly agreed that a central cause for the higher-than-expected electron mobility are correlated azimuthal oscillations that create an effective azimuthal force. Recent experimental results, obtained independently in Michigan and Princeton with modern thrusters, confirm the existence of a low-frequency azimuthal oscillation, called rotating spoke, of similar nature as those originally detected in the 1960's by Janes and Lowder. This project aims at studying theoretically these oscillations by means of a global stability analysis of the Hall discharge against azimuthal disturbances. A central goal of the study will be to determine and quantify in terms of scaling laws their role in anomalous diffusion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
