Speaker
Description
Over the last ten years, the prediction of space debris survivability during their re-entry and the associated prospective ground risk have received an increased interest in the scientific community due to complex multi-physics modelling requirements and crucial industrial applications. Nevertheless, important uncertainties in re-entry physics remain due partially to the lack of data and knowledge to calibrate such tools. Then the interest of developing more complex codes with coupled physics and achieving sensitivity analysis compared to real flight data makes perfect sense.
In this context and in the framework of the French Space Operation Act (LOS), to predict the debris survivability of a space vehicle and its associated fragments during their atmospheric re-entry, and assess the prospective risk on the ground, CNES in collaboration with R.Tech develops its spacecraft-oriented tool named PAMPERO. PAMPERO is a multidisciplinary tool that models a spacecraft's complete atmospheric reentry, including the fragmentation and ablation processes, along a six DOF trajectory.
Within the framework of the improvement/validation of PAMPERO and the in-depth understanding of the re-entry process, data from experiments is essential, regarding all the associated uncertainties.
This presentation aims to challenge the code PAMPERO on the Delta-II flight rebuilding using sensitivity analysis to deduce the most probable re-entry scenario.
