Over the last decades, there has been considerable interest in supersonic axisymmetric wakes, or
. Initially, the motivation of the research was to gain a better understanding of the dynamics of supersonic turbulent flows, and to devise methods for drag reduction. Later, base flows were frequently chosen as a challenging test case for numerical simulations, mainly due to the availability of reliable data from carefully conducted base flow experiments (e.g. Herrin & Dutton, (
)), and the fact that a complex flow is generated by a relatively simple geometry, facilitating grid generation. Furthermore, the failure of early RANS calculations to capture some of the characteristic properties of the flow, e.g. a flat base pressure distribution (Sahu et al.,
), motivated studies employing various RANS and hybrid RANS/LES turbulence models.