Computation of ice shedding trajectories using cartesian grids, penalization, and level sets

Authors:
Héloïse Beaugendre;François Morency;Federico Gallizio;Sophie Laurens
Affiliations:
IPB, Université de Bordeaux, INRIA Bordeaux Sud-Ouest, Equipe-Projet MC2, IMB UMR 5251, Talence, France;Département de Génie Mécanique, École de Technologie Supérieure, Montréal, QC, Canada;Optimad Engineering s.r.l., Turin, Italy;Université de Bordeaux, INRIA Bordeaux Sud-Ouest, Equipe-Projet MC2, IMB UMR 5251, Talence, France
Venue:
Modelling and Simulation in Engineering - Special issue on Advances in Computational Fluid Dynamics and its Applications
Year:
2011

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Abstract

We propose to model ice shedding trajectories by an innovative paradigm that is based on cartesian grids, penalization and level sets. The use of cartesian grids bypasses the meshing issue, and penalization is an efficient alternative to explicitly impose boundary conditions so that the body-fitted meshes can be avoided, making multifluid/multiphysics flows easy to set up and simulate. Level sets describe the geometry in a nonparametric way so that geometrical and topological changes due to physics and in particular shed ice pieces are straight forward to follow. The model results are verified against the case of a free falling sphere. The capabilities of the proposed model are demonstrated on ice trajectories calculations for flow around iced cylinder and airfoil.