Aerothermal Analysis of 3D Concave Cone in Hypersonic Flow in SCIROCCO

Preliminary results from a methodology to numerically rebuild the heating and structural response of a carbon-phenolic 3D concave cone experimentally tested in the SCIROCCO facility are presented. A three stage approach, using discipline specific codes, is utilised to model the fluid-thermal-structural interaction. Freestream conditions are first numerically characterised and compared to experimental data. Validated freestream conditions were then used to numerically predict the surface heating to an axisymmetric analogue of the experimental model. A transient thermal structural analysis was then performed to characterise the material response. The unique shape of the model results in a large subsonic region in the stagnation region. This leads to a stagnation region having significantly lower heat ux than peak heating, observed to occur just aft of the small radius edge between the concave and conical section of the model. Structural temperatures follow the qualitative observation of heating, with large thermal gradients observed along the surface, particularly in the concave region, and structurally. For this preliminary study, one-way coupling between all stages, and cold wall assumptions have been applied.