The chapter presents a comprehensive 3-Dgeneric and portable computational toolset to assess the impact of ice accretion on helicopters in hover and forward flight. This includes rotorcraft airflow, impingement, ice accretion, shedding, shed-ice tracking and iced rotor dynamics. Mesh stitching techniques suitable for unsteady ice accretion and for the simultaneous solution of airflow and droplet impingement over rotating (blades) and non-rotating (fuselage and boom) components of a helicopter are developed. Methods of varying fidelity are proposed for the cracking and tracking of the ice shed. Finally, the rigid and elastic motions of iced blades are modeled through the coupling of airflow and multi-body dynamics solvers. The toolbox is validated against the limited number of open literature experimental icing data available for helicopters.
Numerical Simulation of Rotorcraft Icing: Accretion, Shedding, Tracking and Rotor Dynamics
Handbook of Numerical Simulation of In-Flight Icing ; Kapitel : 11 ; 721-758
12.12.2023
38 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
In-flight icing , Rotorcraft icing certification , Rotorcraft icing CFD , Stitched meshes , Steady and unsteady ice accretion , Ice shedding , Ice breakup , Ice impact , Ice tracking , Rotor fluid-structure interaction , Iced rotor dynamics , Rotorcraft in hover , Rotorcraft in forward motion , Tandem rotors Engineering , Aerospace Technology and Astronautics , Computational Mathematics and Numerical Analysis , Engineering Fluid Dynamics , Analytical Chemistry , Surfaces and Interfaces, Thin Films , Engine Technology
Numerical Simulation of In-Flight Icing of Rotorcraft
Springer Verlag | 2023
|Emerald Group Publishing | 2008
Numerical simulation of icing, deicing, and shedding
AIAA | 1991
|Engine Icing Accretion Simulation
NTRS | 2011
|