Popis: |
The simulation of the reentry phase of booster flight encompasses challenging aerodynamics and trajectories to determine environments and recovery system deployment conditions. Unlike ascent flight, reentry is uncontrolled and may travel through a large range of flight conditions. This paper outlines the process to generate an aerodynamic database that models a solid rocket booster during the reentry phase of flight. Outlined are wind tunnel modeling, population of the database with test data, analytical data and historical data, and utilization of the aerodynamic database in simulation software to predict reentry trajectories which provide input to other analyses such as aeroheating, aeroacoustics, venting, structural loading, and recovery subsystem sizing. A brief statement is also made on comparison of simulation results with flight test data. |