Bruno Dias
PhD student
UBI 2013
Contact - Personnal web page

Main project: Ablation modelling for the simulation of the atmospheric entry of meteors
Funding: FRIA
Supervisor(s): Philippe Chatelain

This project aims to a detailed modelling of a meteoroid entry into planet Earth. The state-of-the-art models to simulate the meteoroid demise rely simplified assumptions where flow/meteoroid ablation interaction are often neglected. For instances the multiphase problem due to the melting of the meteoroid is not considered.
The approach considered in this project considers the developing of models containing melting/evaporation information which can be included in CFD solvers. Hereafter we could to simulate a meteoroid entry where radiation is also included and compared with observations done by the scientific community.
The preliminary results shows that the molten layer removal due to shear forces is the major source of the ablation process for low altitudes conditions. Also with the increase of the body radius the radiation becomes dominant as a heat source.

IMMC main research direction(s):
Fluid mechanics

non-equilibrium thermodynamics
two-phase flows

Research group(s): TFL

Recent publications

See complete list of publications

Conference Papers

1. Dias, Bruno; Bariselli, Federico; Turchi, Alessandro; Frezzotti, Aldo; Chatelain, Philippe; Magin, Thierry. Development of a melting model for meteors. In: AIP Conference Proceedings. Vol. 1786, no.1, p. 160004 (2016). doi:10.1063/1.4967661.