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Multi-Shot Icing Simulations with Automatic Re-Meshing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 10, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
A full-automated CFD mesh generation technique has been developed and implemented for 3-D aircraft icing simulations to permit robust 45-minute ice accretion simulations in support of icing certification campaigns. The changes in the shape of the aircraft surfaces due to accreting ice and their effects on the air and droplet flow are accounted for in a quasi-steady manner by subdividing the total icing time into sequential steps of shorter duration, updating the computational grid at each step. This “multi-shot” ice accretion approach requires robust and accurate grid re-meshing for it to be embedded in engineering design and analysis workflows. ANSYS FENSAP-ICE has been coupled to Fluent Meshing to take advantage of generic and highly automated surface displacement and mesh wrapping tools. A wide spectrum of geometries is supported, ranging from full-size aircraft to air data probes, turbomachinery components, rotors and propellers. With this technology, obtaining 45-minute ice shapes at holding conditions in support of icing certification campaigns requires no manual input from the user once the calculation is started. The results shown include 45-minute ice accretion simulation on a full-size swept-wing commercial jetliner model in high-lift configuration, 30-minute ice accretion on a swept wing, 10-minute Pitot-tube icing with blockage, and 9-minute icing on a propeller blade. For completeness, two NACA0012 airfoil validation cases are compared to icing tunnel tracings.
|Technical Paper||Equivalent Sand Grain Roughness Correlation for Aircraft Ice Shape Predictions|
|Technical Paper||An Ice Shedding Model for Rotating Components|
|Technical Paper||CFD Analysis of Supercooled Large Droplets in Turbofan Engines|
CitationOzcer, I., Switchenko, D., Baruzzi, G., and Chen, J., "Multi-Shot Icing Simulations with Automatic Re-Meshing," SAE Technical Paper 2019-01-1956, 2019, https://doi.org/10.4271/2019-01-1956.
Data Sets - Support Documents
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