Browse Publications Technical Papers 2015-01-2091
2015-06-15

Numerical Investigation of Ice Shedding Associated with Engine Fan Icing 2015-01-2091

In a jet engine, ice accreted on a fan rotor can be shed from the blade surface due to centrifugal force, and the shed ice can damage compressor components. This phenomenon, which is referred to as ice shedding, threatens safe flight. However, there have been few studies on ice shedding because ice has numerous unknown physical parameters. Although existing icing models can simulate ice growth, these models do not have the capability to reproduce ice shedding. As such, in a previous study, we developed an icing model that takes into account both ice growth and ice shedding.
In the present study, we apply the proposed icing model to a jet engine fan in order to investigate the effect of ice growth and shedding on the flow field. The computational targets of the present study are the engine fan and the fan exit guide vane (FEGV); thus, we simultaneously deal with the rotor-stator interaction problem. The obtained results reveal that a drastic change in the engine performance is due to ice growth and ice shedding in both the fan rotor and the FEGV.

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