A Three-Dimensional Level-Set Front Tracking Technique for Automatic Multi-Step Simulations of In-Flight Ice Accretion 2023-01-1467
This paper presents a novel fully-automatic remeshing procedure, based on the level-set method and Delaunay triangulation, to model three-dimensional boundary problems and generate a new conformal body-fitted mesh. The proposed methodology is applied to long-term in-flight ice accretion, which is characterized by the formation of extremely irregular ice shapes. Since ice accretion is coupled with the aerodynamic flow field, a multi-step procedure is implemented. The total icing exposure time is subdivided into smaller time steps, and at each time step a three-dimensional body-fitted mesh, suitable for the computation of the aerodynamic flow field around the updated geometry, is generated automatically. The methodology proposed can effectively deal with front intersections, as shown with a manufactured example. Numerical simulations over a NACA0012 swept wing both in rime and glaze conditions are compared with the experimentally measured ice shapes from the 1st AIAA Ice Prediction Workshop.
Citation: Donizetti, A., Rausa, A., Bellosta, T., Re, B. et al., "A Three-Dimensional Level-Set Front Tracking Technique for Automatic Multi-Step Simulations of In-Flight Ice Accretion," SAE Technical Paper 2023-01-1467, 2023, https://doi.org/10.4271/2023-01-1467. Download Citation
Author(s):
Alessandro Donizetti, Andrea Rausa, Tommaso Bellosta, Barbara Re, Alberto Guardone
Affiliated:
Politecnico di Milano
Pages: 12
Event:
International Conference on Icing of Aircraft, Engines, and Structures
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Icing and ice detection
Computer simulation
Scale models
Wings
Aerodynamics
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