stab_v.v2d
ampl_v.v2d
 2         # Model
 2         # Discretization
 1         # Implicit residual smoothing
 53        # Multistage scheme
 1.0       # CFL-number basic scheme
 5.0       # CFL-number smoothed scheme
 2.0       # Ratio of viscous to convective eigenvalue
 0.0       # Artificial dissipation coefficient (if discretization = 0; given as 1/eps^(4))
 1.0       # Coefficient of implicit residual smoothing
 0.2742  0.2067  0.5020  0.5142  1.0   # Stage coefficients
 -8.   2.  # xbeg, xend
 -4.   4.  # ybeg, yend

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1st plot file: stability region and Fourier symbols
2nd plot file: amplification factor over the phase angle

Model:
  1 = convection model equation (similar to Euler)
  2 = convection-diffusion model equation (similar to Navier-Stokes)

Discretization:
  0 = central with 3rd-order artificial dissipation
  1 = 1st-order upwind
  2 = 2nd-order upwind

Implicit residual smoothing:
  1 = central
  2 = upwind

Multistage scheme:
  31 = (3,1)-scheme
  32 = (3,2)-scheme
  33 = (3,3)-scheme
  41 = (4,1)-scheme
  42 = (4,2)-scheme
  44 = (4,4)-scheme
  52 = (5,2)-scheme
  53 = (5,3)-scheme with blended dissipation (hybrid)
  55 = (5,5)-scheme

xbeg, xend:
  x-axis range for the plot of stability region (e.g., -5.  1.)

ybeg, yend:
  y-axis range (e.g., -5.  +5.)
