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Accession Number:
AD1058996
Title:
Fluid Modeling of Instabilities and Structures in Hall Plasmas Relevant to Electric Propulsion
Report Date:
2017-11-07
Abstract:
This program studied the dominant mechanisms of the anomalous transport and formation of coherent structures in partially magnetized plasmas relevant to electric propulsion. The ultimate goal of this research is to develop physics based simulation capabilities for predictive design of new plasma propulsion systems. The advanced fluid model describing the instabilities, turbulence, and anomalous current has been developed and implemented in high performance numerical code. For the first time, the first principle fluid simulations have predicted the anomalous transport which is roughly consistent with experimental values and results of kinetic simulations. The inverse cascade toward larger scale structures was demonstrated showing formation of zonal flows, vorticies and streamers. It was shown that anomalous transport in these systems is dominated by large scale modes.
Document Type:
Conference:
Journal:
Pages:
22
File Size:
2.99MB
FA9550-15-1-0226
(FA95501510226);
Contracts:
Grants:
Distribution Statement:
Approved For Public Release
