The Gas Dynamics Toolkit (GDTk) is a set of software tools for simulating high speed fluid flow, maintained at The University of Queensland and the University of Southern Queensland, Australia.
Please let me know if there are any troubles with this, and make sure to use the general TwoTemperatureGas model, not any of the legacy models like TwoTemperatureAir.
The 2T gas model appear to be incompatible with the InFlowFromStagnation_BC