Author:

Keywords:

magnetic reconnection, higher-moment models, Discontinuous Galerkin, hyperbolic methods

Abstract:

The 20-moment two-fluid-Maxwell model resolves diagonal pressure tensor components near the X-point when compared with Vlasov simulations of fast magnetic reconnection, in contrast to the 10-moment model. This occurs because, unlike the hyperbolic 10-moment model, the 20-moment model admits heat flux, which is a modeling requirement to admit steady-state 2D symmetric (driven) magnetic reconnection.