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
Rotorcraft icing certification , Ice tracking , Rotorcraft icing CFD , In-flight icing , Rotor fluid-structure interaction , Rotorcraft in forward motion , Stitched meshes , Iced rotor dynamics , Steady and unsteady ice accretion , Ice breakup , Ice shedding , Ice impact , Rotorcraft in hover , Tandem rotors Analytical Chemistry , Aerospace Technology and Astronautics , Engineering Fluid Dynamics , Surfaces and Interfaces, Thin Films , Computational Mathematics and Numerical Analysis , Engine Technology , Engineering
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
|