The 20th Biennial Computational Techniques and Applications, Sydney, Avustralya, 30 Ağustos - 02 Eylül 2020, ss.24
In this talk, we deal with a simplified version of chemically reactive multi-species hypersonic
flow around a cylinder. For this purpose, it is assumed that the flow environment only consists of
nitrogen gas (N2), and no chemical reaction takes place in the flow field. Furthermore, the flow is
assumed to be inviscid. A stabilized method is needed to prevent the numerical oscillations caused
by the advection terms in the governing equations. Beyond that, a shock-capturing method is
needed to obtain good solution profiles at the shocks. In this study, we use the compressible-flow
Streamline-Upwind/Petrov-Galerkin method, complemented with the Y Zβ shock-capturing. The
zero-normal-velocity condition on the cylinder is enforced weakly. Numerical simulations are carried
out in the FEniCS ecosystem for both supersonic and hypersonic freestream conditions.