  In this paper, we present a methodology to achieve high-fidelity simulations
of chemically reacting hypersonic flows and demonstrate our numerical solver's
capabilities on a selection of configurations. The numerical tools are
developed based on previous in-house codes for high-speed simulations with
improvements in both numerical and physical modeling. Additionally, a modular,
open-source library is coupled with the flow solver for modeling real-gas
effects in variable atmospheric mixtures. Verification against literature is
done for canonical flat-plate boundary layers with various choices for gas
modeling, with excellent agreement observed in all cases. The implementation of
an artificial-diffusivity shock-capturing numerical scheme is then verified for
supersonic shockwave--boundary-layer interaction (SBLI) cases and the improved
code's capabilities are demonstrated for the cases of hypersonic SBLI and a
sonic jet injection in a hypersonic crossflow, at higher enthalpy levels than
those previously investigated. The results show excellent agreement with
previous observations in the literature. The work presented in this paper
demonstrates the range of applications that can be investigated with this tool,
highlights the need for accurate physicochemical modeling, and paves the way
for addressing increasingly more complex configurations and flows.
