High-fidelity simulation and low-order analysis for planetary descent investigation of capsule-parachute interaction

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High-fidelity simulation and low-order analysis for planetary descent investigation of capsule-parachute interaction

L. Placco, F. Dalla Barba, F. Picano

Abstract. The project focuses on characterizing the unsteady dynamics of the parachute-capsule system during the descent phase of planetary entry in a supersonic flow regime. Currently, Large-Eddy Simulation, coupled with an Immersed-Boundary Method, is utilized to examine the time-evolving flow behavior of a rigid supersonic parachute trailing behind a reentry capsule as it descends through the Martian atmosphere. The flow is simulated at Ma=2 and Re=10^6. A massive GPU parallelization has been utilized to enable a high-fidelity resolution of the turbulent structures in the flow, essential for capturing its dynamic behavior. We demonstrate through low-order modeling of the unsteady turbulent wake of the capsule that low-frequency fluctuations within the wake are the primary trigger for flow instability in front of the canopy volume. Proper-Orthogonal Decomposition is utilized to investigate the system dynamics and analyze how various turbulence contributions influence the phenomenon.

Keywords
Supersonic Parachute, Supersonic Flows, Large Eddy Simulation, Low-Order Modelling

Published online 6/1/2024, 4 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: L. Placco, F. Dalla Barba, F. Picano, High-fidelity simulation and low-order analysis for planetary descent investigation of capsule-parachute interaction, Materials Research Proceedings, Vol. 42, pp 104-107, 2024

DOI: https://doi.org/10.21741/9781644903193-23

The article was published as article 23 of the book Aerospace Science and Engineering

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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