!                                  -*-f90-*-
! Initialisation parameters
!
&init_pars
  cvsid='$Id: start.in,v 1.2 2024/02/12 12:58:07 brandenb Exp $',
/
&eos_init_pars
  gamma=1.
/
&hydro_init_pars
/
&density_init_pars
/
&magnetic_init_pars
  ! superposition of two Beltrami fields:
  ! 1. A=1e-6*(sin kz*z, cos kz*z, 0       )
  ! 2. A=1e-5*(       0, cos kx*x, sin kx*x)
  initaa='Beltrami-z', 'Beltrami-x'
  amplaa=+1e-6       , -1e-5        !(?+ve amplaa means now positive helicity)
  kz_aa = 1.         ,  0. 
  kx_aa = 0.         , +5. 
  !
  ! old:
  ! initaa='Beltrami-z',   amplaa=+1e-6, kz_aa=1.   !(+ve amplaa means now positive helicity)
  ! initaa2='Beltrami-x', amplaa2=-1e-5, kx_aa=5.
  !
  ! Currently, the sign of the helicity of the Beltrami wave
  ! can only be changed by changing the sign of the amplitude,
  ! but not by changing the sign of k.
  !
/
