Numerical Simulation of the Interaction between a Free-flying Ring and a Curved Shock Wave

Bodo REIMANN

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST 2024-0028

A free-flying ring crossing the curved bow shock in front of cylinder was selected as numerical test case within ESA’s ATD3 working group in 2022. The experiment to compare with was carried out in the VKI Longshot gun tunnel facility at a free stream Mach number of about 14. This paper presents the DLR simulation results achieved by coupling the DLR in-house CFD solver TAU with a 6-DoF flight mechanic solver. Local dynamic grid adaptation is used to capture shocks and unsteady shock interactions. The results of the coupled simulation are compared to results of a simulation with prescribed motion using the experimental determined motion state as input, and results of a flight mechanic simulation prescribing the measured aerodynamic forces and moments.

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CFD 6-DoF Coupling, Free-flight Modeling, Shock Interaction, Space debris

In Categories: 1.Events, High-Speed Aerodynamics and Aerothermodynamics, HiSST 2024

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