Chatelain, PhilippeSchrooyen, PierreBernay, BrunoLaval, WilliamWilliamLaval2025-05-142025-05-142025-05-142022https://hdl.handle.net/2078.2/27821The phenomenon of in-cloud ice accretion occurring in icing conditions represents one of the main safety concerns in modern aviation. When the air temperature is sufficiently low and the level of humidity is high enough, an ice layer can form on different structures of aircrafts (wings, engine inlets, ...) due to the impinging water droplets contained in the airflow, reducing the flight performances and representing a danger for the passengers and for the crew. The icing phenomenon has to be well known to design efficient and reliable Ice Protection Systems (IPS). The aim of the thesis is to replace the Lagrangian approach of the reactingParcelFilmFoam solver of the OpenFOAM library by an initial computation of the collection efficiency which is then used to directly apply the mass, momentum and energy source terms in the implemented film model equations. This showed encouraging results regarding the ice thickness predictions compared to experimental tests performed in the NASA Icing Research Tunnel (IRT). Although the obtained shape and thickness do not perfectly fit with these data, they still show similarities and offer a significant advantage over the Lagrangian approach performed in reactingParcelFilmFoam in terms of computational performances.Ice accretionNumerical simulationOpenFOAMCollection efficiencyNACA0012text::thesis::master thesisthesis:37844