Themes: Engineering sciences: fluid mechanics, energetics
Thesis location: Research and Modeling Laboratory for Airborne Dispersion and Containement (LEMAC) - saclay (91)
Start: October 2021
Skills in fluid mechanics, aerosol physics
Age limit: 26 years old unless otherwise stated.
This subject is part of the DEPART research program (see report PSN-RES / SCA / 2018-133) dedicated to the study of aerosol deposition in ventilation networks. Its objective is to develop and validate a simple particle retention model for a tee-junction in order to be able to implement it in the SYLVIA IRSN code, a code used for safety studies in particular to estimate the environmental radioactive releases following a degraded or accidental situation. Indeed, such a deposition model does not exist to date and the many tee-junctions existing on ventilation ducts are simulated using simplistic assumptions. This development and validation will be based on experimental campaigns carried out on the MISTRAL platform (DIESE facility) associated with CFD simulations.