Chevalier & Clegg 1985 (CC85) wind is spherically symmetric. So a coordinate system in the simulation that naturally aligns with the wind geometry allows the steady wind profiles to remain numerically stable for an arbitrarily long time. Therefore, it is worth setting cloud crushing problem in spherical coordinates to study it cloud-wind interaction in an adiabatically expanding wind, like CC85.
To retain the hierarchy that wind corresponds to hot gas and mixed gas has an intermediate temperature between cold cloud and the wind.
The physically relevant portion of the domain where the general cloud crushing results are applicable is where
Here is the entire simulation domain where the code length is the initial cloud radius. For this visualization, I have chosen