Reduced-Order Modeling Approach to Blunt-Body Aerodynamic Modeling

What is it about?

Current methods used to quantify the dynamic aerodynamic characteristics of atmospheric entry vehicles make simplifying assumptions to isolate the behavior to a non-dimensional value. When used with Computation Fluid Dynamics (CFD) simulations, these methods omit significant amounts of high-fidelity data that could be used to capture the dynamic response of the vehicle. Reduced Order Models (ROMs) can leverage this high-fidelity data to make time-accurate predictions of aerodynamic fields that contribute to the dynamic aerodynamic characteristics of these vehicles. This work demonstrates this capability on simulated forced oscillation trajectories of the Genesis Sample Return Capsule ballistic range model, capturing most of the vehicle dynamics when compared to an unsampled validation trajectory.

Featured Image