Integrated Tools for Rotorcraft Icing Analysis

Advanced tools for modeling ice accretion based on LEWICE and an Extended Messinger Model are being coupled to the DoD HPCMP CREATETM HELIOS code, and in particular the OVERFLOW 2.2k option within HELIOS. Tools for deicing and ice shedding, using the ice shape computed from the OVERFLOW flow field, are integrated into the HELIOS infrastructure through a set of python-based interfaces. The integrated icing analysis tools are then applied to rotorcraft icing problems. A series of progressively challenging simulations have been carried out. The numerical results are validated against a set of test data for ice shapes and associated measurements. Selected results are presented that demonstrate and validate these methods.