&run_pars
  cvsid='$Id: run.in,v 1.1 2004/10/18 11:30:48 nilshau Exp $',
  nt=50000, it1=1, cdt=0.7, cdtv=0.30,isave=100, itorder=3,
  dsnap=10., dvid=200., ialive=1,dspec=40.,vel_spec=T,mag_spec=T
  fft_switch='fftpack',lsfu=T
/
&hydro_run_pars
  nu=8e-4, ivisc='nu-const',
/
&density_run_pars
/
&forcing_run_pars
  iforce='helical', force=0.02, relhel=0.,slope_ff=5.
/
