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A Dedicated Simulation Chain to Predict Hypervelocity Impact Effects on Disc, Onboard the Comet Interceptor/Esa Space Mission

SSRN, ISSN: 1556-5068
2024
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Article Description

Comet Interceptor is an ESA mission, which will be launched in 2029 towards an as-yet-undiscovered dynamically new comet. The Dust Impact Sensor and Counter (DISC), developed by our team, will be mounted on board two of the three planned Comet Interceptor spacecraft, aiming to determine the coma dust features of the target comet. DISC’s sensing plate will be exposed to the cometary dust environment and subjected to Hyper-Velocity Impacts (HVI), due to the high flyby speed (10 – 70 km/s). Laboratory facilities do not allow us to test the whole range of impact cases that DISC will undergo during the measurements. To overcome this limitation, we implemented a simulation system with ANSYSTM software and the AUTODYNTM hydrocode, able to reproduce a wide range of dust particle impacts. The simulation process involves a hybrid model, which is discretized with both Smooth Particles Hydrodynamic (SPH) and Finite Element methods (FE) and organized in two connected phases. The results we herein illustrate confirm that the simulation system we implemented allows simulating the DISC operative phase in an efficient, fast, and reliable way.

Bibliographic Details

Alice Maria Piccirillo; Alessandra Rotundi; Laura Inno; Ivano Bertini; Alessio Ferone; Stefano Fiscale; Stefano Ferretti; Vincenzo Della Corte; Fabio Cozzolino; Andrea Longobardo; Eleonora Ammannito; Chiara Grappasonni; Giuseppe Sindoni; Penelope J. Wozniakiewicz; Luke S. Alesbrook; Mark J. Burchell

Elsevier BV

Multidisciplinary; Comet Interceptor; Cometary Dust; Hypervelocity Impact; Smooth Particle Hydrodynamic; Numerical Simulations; Light Gas Gun.

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