Abstract : This paper gives a derivation of the two-temperature Euler plasma system from the two-fluid MHD model. The two-temperature Euler plasma system is proved to be an asymptotic regime for weakly magnetized plasma of the two-fluid MHD model. Our procedure is more general, enabling us to show that assumptions in previous derivations in literature are straightforward consequences of our work. We then propose a finite volume approximation to compute the solution of the two-temperature Euler plasma model in unstructured tessellations used to adequately mesh the toroidal geometry of the tokamak, where flows the plasma. Numerical tests illustrate our method.
https://hal.inria.fr/hal-03543365 Contributor : Afeintou SangamConnect in order to contact the contributor Submitted on : Wednesday, January 26, 2022 - 5:20:49 AM Last modification on : Sunday, May 1, 2022 - 3:17:47 AM Long-term archiving on: : Wednesday, April 27, 2022 - 6:11:47 PM