Hypersonic vehicle flow-heat-solid coupling simulation

Take the HiFire-1 cone as the research subject to analyze the aircraft flow - heat - solid coupling field by sequential coupling method. Transition k-kl-ω turbulence model has been used to accurately calculate the position of the transition and flux values in the outside flow field numerical simulation which is basically consistent with the experimental data. In temperature field and stress field numerical simulation, the temperature field and stress field distribution of the HiFire-1 cone is calculated when aerodynamic heating time is 1 s. The results showed that the maximum temperature and deformation point occurred at the top of the cone. Cone temperature presented cyclic distribution in the axial direction, and decreased gradually along the axis. The top node temperature gradually rises over time and the change trend gradually slows down. The elastic deformation of the overall structure is positive correlation with the temperature, and the main deformation zone focus on the front area of high temperature.