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arXiv · 2208.03780

Fueling limits in a cylindrical viscosity-limited reactor

Tal Rubin·Elijah J. Kolmes·Ian E. Ochs·Mikhail E. Mlodik·Nathaniel J. Fisch
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Abstract

Recently, a method to achieve a "natural hot-ion mode" was suggested, by utilizing ion viscous heating in a rotating plasma with a fixed boundary. We explore the steady-state solution to the Braginskii equations and find the parameter regime in which a significant temperature difference between ions and electrons can be sustained in a driven steady state. The threshold for this effect occurs at $\rho_i\gtrsim0.1R$. An analytic, leading order low flow solution is obtained, and a numerical, moderate Mach number $M\lesssim2$ is investigated. The limitation is found to be at moderate Mach numbers.

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Tal Rubin, Elijah J. Kolmes, Ian E. Ochs, Mikhail E. Mlodik, Nathaniel J. Fisch. 2022-08-07. Fueling limits in a cylindrical viscosity-limited reactor. https://doi.org/10.1063/5.0101271

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