CFD simulations of the supersonic inflatable aerodynamic decelerator (SIAD) ballistic range tests. Brock, J. M., Stern, E. C., & Wilder, M. C. In 2017. AIAA Paper 2017-1437. ![CFD simulations of the supersonic inflatable aerodynamic decelerator (SIAD) ballistic range tests [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex A series of ballistic range tests were performed on a scaled model of the Supersonic Flight Demonstration Test (SFDT) intended to test the Supersonic Inflatable Aerodynamic Decelerator (SIAD) geometry. The purpose of these experiments were to provide aerodynamic coefficients of the vehicle to aid in mission and vehicle design. The experimental data spans the moderate Mach number range, 3:8-2:0, with a total angle of attack (αT) range, 10°-20°. These conditions are intended to span the Mach-α space for the majority of the SFDT experiment. In an effort to validate the predictive capabilities of Computational Fluid Dynamics (CFD) for free-flight aerodynamic behavior, numerical simulations of the ballistic range experiment are performed using the unstructured finite volume Navier-Stokes solver, US3. D. Comparisons to raw vehicle attitude, and post-processed aerodynamic coefficients are made between simulated results and experimental data. The resulting comparisons for both raw model attitude and derived aerodynamic coefficients show good agreement with experimental results. Additionally, near body pressure field values for each trajectory simulated are investigated. Extracted surface and wake pressure data gives further insights into dynamic/flow coupling leading to a potential mechanism for dynamic instability.
@inproceedings{brock2017,
title = {{CFD} simulations of the supersonic inflatable aerodynamic decelerator ({SIAD}) ballistic range tests},
isbn = {978-1-62410-447-3},
url = {https://arc.aiaa.org/doi/10.2514/6.2017-1437},
doi = {10.2514/6.2017-1437},
abstract = {A series of ballistic range tests were performed on a scaled model of the Supersonic Flight Demonstration Test (SFDT) intended to test the Supersonic Inflatable Aerodynamic Decelerator (SIAD) geometry. The purpose of these experiments were to provide aerodynamic coefficients of the vehicle to aid in mission and vehicle design. The experimental data spans the moderate Mach number range, 3:8-2:0, with a total angle of attack (αT) range, 10°-20°. These conditions are intended to span the Mach-α space for the majority of the SFDT experiment. In an effort to validate the predictive capabilities of Computational Fluid Dynamics (CFD) for free-flight aerodynamic behavior, numerical simulations of the ballistic range experiment are performed using the unstructured finite volume Navier-Stokes solver, US3. D. Comparisons to raw vehicle attitude, and post-processed aerodynamic coefficients are made between simulated results and experimental data. The resulting comparisons for both raw model attitude and derived aerodynamic coefficients show good agreement with experimental results. Additionally, near body pressure field values for each trajectory simulated are investigated. Extracted surface and wake pressure data gives further insights into dynamic/flow coupling leading to a potential mechanism for dynamic instability.},
publisher = {AIAA Paper 2017-1437},
author = {Brock, Joseph M. and Stern, Eric C. and Wilder, Michael C.},
year = {2017},
}
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