Abstract
Language | English |
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Journal | Journal of Aircraft |
Publication status | Accepted/In press - 24 Sep 2017 |
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Keywords
- helicopter rotors
- aerodynamic characteristics
- ice accretion
- rotor blades
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Ice accretion effects in helicopter rotor performance via multi-body and CFD approaches. / Kelly, Daniel; Habashi, Wagdi G.; Quaranta, Giuseppe; Masarati, Pierangelo; Fossati, Marco.
In: Journal of Aircraft, 24.09.2017.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ice accretion effects in helicopter rotor performance via multi-body and CFD approaches
AU - Kelly, Daniel
AU - Habashi, Wagdi G.
AU - Quaranta, Giuseppe
AU - Masarati, Pierangelo
AU - Fossati, Marco
PY - 2017/9/24
Y1 - 2017/9/24
N2 - A numerical approach for assessing the degraded aerodynamics and flight characteristics of ice-contaminated helicopter rotors is proposed. A hybrid two- and three-dimensional loose coupling strategy between Multibody Dynamics modeling and Computational Fluid Dynamics icing is formulated that attempts to balance computational resources, model complexity and accuracy for use during the early-design phases. A quasi-3D formulation that considers the heat transfer and the motion of the water film due to centrifugal effects is introduced. The method is suited for the analysis of rime, glaze and/or mixed ice conditions. Degraded aerodynamic and dynamic characteristics of the iced rotor and the changes in flight performance are assessed. The technique has been applied to the scenario of isolated helicopter rotors in hover and in forward flight. Deterioration of the figure of merit is also presented.
AB - A numerical approach for assessing the degraded aerodynamics and flight characteristics of ice-contaminated helicopter rotors is proposed. A hybrid two- and three-dimensional loose coupling strategy between Multibody Dynamics modeling and Computational Fluid Dynamics icing is formulated that attempts to balance computational resources, model complexity and accuracy for use during the early-design phases. A quasi-3D formulation that considers the heat transfer and the motion of the water film due to centrifugal effects is introduced. The method is suited for the analysis of rime, glaze and/or mixed ice conditions. Degraded aerodynamic and dynamic characteristics of the iced rotor and the changes in flight performance are assessed. The technique has been applied to the scenario of isolated helicopter rotors in hover and in forward flight. Deterioration of the figure of merit is also presented.
KW - helicopter rotors
KW - aerodynamic characteristics
KW - ice accretion
KW - rotor blades
UR - https://arc.aiaa.org/loi/ja
M3 - Article
JO - Journal of Aircraft
T2 - Journal of Aircraft
JF - Journal of Aircraft
SN - 0021-8669
ER -