Particle number density (left panel), velocity (middle panel), and temperature (right panel) along the line in the centre of the WWC region (i.e. the dashed red line in Fig. 3) as a function of distance along the line. The two lines in each plot correspond to the two directions from the centre outwards. The dashed lines in the velocity plot show the sound speed along the lines. The increase in wind speed far from the centre of the system is mostly a result of Coriolis forces in the rotating frame of reference of our simulation.