9.1 Synopsis
  9.1.1 Euler equations
  9.1.2 Compressible Navier-Stokes equations
  9.1.3 Numerical discretisation
 9.2 Usage
 9.3 Session file configuration
  Parameters
  Solver info
  Boundary conditions
  Initial conditions and exact solution
 9.4 Examples
  9.4.1 Shock capturing
  9.4.2 Variable polynomial order