PLUTO Test Problems  4.4-patch2
Functions
init.c File Reference

Reconnection test (Harris sheet) in 2D. More...

Functions

void InitDomain (Data *d, Grid *grid)
 

Detailed Description

In this setup we reproduce a 2D Harris current sheet in the Hall MHD framework. The setup, where we make use of an Isothermal EoS, is the same as the 2D Harris current sheet provided in /Test_Problems/MHD/Resistive_MHD/Current_Sheet/ (see also Section 5.3 of Mignone et al., ApJS (2012) 198:7).

Configuration #01 includes Hall MHD while configuration #02 use classical MHD without resistivity (ideal case). Fig. 1 shows current density $ J_z$ and magnetic field lines for configuration #01 at $ t = 57 $. A comparison between Hall and classical MHD is shown in fig. 2, where we plot the reconnected flux $ \int_{0}^{L_x/2} B_y dx $ as a function of time.

hall_cs_fig1.png
Fig. 1 - The reconnected magnetic flux as a function of time for Hall and classical MHD for a Harris current sheet
hall_cs_fig2.png
Fig. 2 - Pseudocolor rendering of the current density (color) with magnetic field lines at t = 57 for the Hall MHD simulation of the Harris current sheet.
Authors
E. Striani (edoar.nosp@m.do.s.nosp@m.trian.nosp@m.i@ia.nosp@m.ps.in.nosp@m.af.i.nosp@m.t)
A. Mignone (migno.nosp@m.ne@p.nosp@m.h.uni.nosp@m.to.i.nosp@m.t)
B. Vaidya (bharg.nosp@m.av.v.nosp@m.aidya.nosp@m.@uni.nosp@m.to.it)
Date
May 09, 2017

Reference

Function Documentation

◆ InitDomain()

void InitDomain ( Data *  d,
Grid *  grid 
)

Assign initial condition by looping over the computational domain. Called after the usual Init() function to assign initial conditions on primitive variables. Value assigned here will overwrite those prescribed during Init().