Modeling and Simulation of Turbulent Reacting Flow Around a Hypersonic Space Probe

摘要

The turbulent flow around a hypersonic probe has been performed. This work, even qualitative, stays very interesting because this computation enables us to know how the turbulence modifies the boundary, the flowfields in recirculation zones. A launching of the turbulence can be observed at the front shield. But the double relaxation zone completely decreases the turbulence intensity. A nonnegligible difference between the temperature fields of laminar and turbulent flows is noticed, thus, the fields of concentration of chemical species. This signifies that even the weak turbulent intensity cannot be ignored in this particular case. This study has shown that the weak turbulence intensity can lead a difference of 500 K on the temperature in the base. This difference is expressed by an augmentation more than 50% of CO_2 in the same zone.