7.1 Synopsis
  7.1.1 Euler equations
  7.1.2 Compressible Navier-Stokes equations
  7.1.3 Numerical discretisation
 7.2 Usage
 7.3 Session file configuration
  Parameters
  Solver info
  Boundary conditions
  Initial conditions and exact solution
 7.4 Examples
  7.4.1 Shock capturing
  7.4.2 Variable polynomial order