Effects of initial conditions and transport on ram pressure, Mach number, and uniformity for plasma liner formation and implosion

Schillo, Kevin; Cassibry, Jason

doi:10.1063/1.5143009

Effects of initial conditions and transport on ram pressure, Mach number, and uniformity for plasma liner formation and implosion

Journal Article · Fri Apr 10 00:00:00 EDT 2020 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5143009· OSTI ID:1632951

Schillo, Kevin;

Plasma jet driven magneto-inertial fusion involves the merging of high Mach number plasma jets in a spherically converging geometry to form an imploding plasma liner. A three-dimensional smooth particle hydrodynamic simulation tool was used to study the number of plasma jets, jet density, and implosion velocity on the effects of formation and subsequent implosion of a plasma liner. The effects of different transport physics are presented. Thermal radiation and two-temperature modeling were found to have the most significant impact on the ram pressure. Solid angle averaged ram pressure and Mach number degradation were of particular interest in this study. Higher jet numbers were found to result in higher peak ram pressure. A spherical harmonic analysis was conducted for each case, providing a quantitative measure of the non-uniformity of the liner during the implosion process and how non-uniformities are affected by the different parameters explored in this study.

View Accepted Manuscript (Publisher)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

Grant/Contract Number:: AR0000566

OSTI ID:: 1632951

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 4 Vol. 27; ISSN 1070-664X

Publisher:: American Institute of PhysicsCopyright Statement

Country of Publication:: United States

Language:: English

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