DOAJ Open Access 2024

Scaling laws of the plasma velocity in visco-resistive magnetohydrodynamic systems

A. Krupka M.-C. Firpo

Abstrak

We consider a visco-resistive magnetohydrodynamic modelling of a steady-state incompressible tokamak plasma with a prescribed toroidal current drive, featuring constant resistivity η and viscosity ν. It is shown that the plasma velocity root-mean-square behaves as ηf(H) as long as the inertial term remains negligible, where H stands for the Hartmann number H≡(ην)−1/2, and that f(H) exhibits power-law behaviours in the limits H≪1 and H≫1. In the latter limit, we establish that f(H) scales as H1/4, which is consistent with numerical results.

Topik & Kata Kunci

Plasma physics. Ionized gases Science

Penulis (2)

A. Krupka

M.-C. Firpo

Format Sitasi

APA MLA BibTeX

Krupka, A., Firpo, M. (2024). Scaling laws of the plasma velocity in visco-resistive magnetohydrodynamic systems. https://doi.org/10.1016/j.fpp.2024.100044

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Informasi Jurnal

Tahun Terbit: 2024
Sumber Database: DOAJ
DOI: 10.1016/j.fpp.2024.100044
Akses: Open Access ✓