Computation of Hypersonic Flows with Lateral Jets Using k-ω Turbulence Model (original) (raw)

Iyengar, Spatika Dasharati MSAE, Embry-Riddle Aeronautical University, December 2015. Computation of Hypersonic flows with Lateral Jets using k-ω Turbulence Model. Thermal Protection systems(TPS) are used as shields in space vehicles which encounter high heat and temperatures at the reentry altitudes. Among them, the cooling techniques and the ablative coatings are most popular. However, they have their own weight limitations. In the recent decade, another classification of TPS called the NonAblative Thermal Protection systems (NaTPS) have gained significance. The spikelateral jet method is an NaTPS concept proposed for drag and heat flux reduction in hypersonic nose cones. Numerical simulations are conducted to analyze the effectiveness of spike-lateral jet concept at re-entry altitudes. The spike attached to the hemispherical nose has two circular orifices which eject air. The freestream conditions include Mach number 6 and standard atmospheric conditions at 30 km altitude. The k-...