Linearized Euler Equations

This is a collection of setups for the linearized Euler equations. The definition of linearized Euler equations is provided in atl_eqn_LinearEuler_module. The examples are further distinguished into setups for three and two dimensions.

For the linearized Euler equation we need to provide a background state around which the linearization is to be done. This is given in terms density, velocity and pressure. The equation definition, therefore, looks as follows:

  equation = {
    name   = 'linearEuler',
    isen_coef = 1.4,
    background = {
      density = 1.225,
      velocityX = 100.0,
      velocityY = 0.0,
      velocityZ = 0.0,
      pressure = 100000.0
    }
  }