雾凇
结冰
结冰条件
材料科学
釉
空气动力学
机械风扇
转子(电动)
气流
机械
复合材料
机械工程
气象学
工程类
物理
陶瓷
作者
Linchuan Tian,Linkai Li,Haiyang Hu,Hui Hu
出处
期刊:Journal of Thermophysics and Heat Transfer
[American Institute of Aeronautics and Astronautics]
日期:2023-04-01
卷期号:37 (2): 353-364
被引量:3
摘要
An experimental campaign was conducted to study dynamic ice accretion on rotating aeroengine fan blades and evaluate the icing-induced performance degradation to the fan rotor. The experiments were performed in an icing research tunnel with a scaled spinner-fan model exposed to typical dry rime and wet glaze icing conditions. Although the accreted ice layers were found to conform well with the shapes of the fan blades under the rime icing condition, the performance of the fan rotor was found to degrade substantially due to the much rougher blade surfaces, causing up to 60% reduction in the pressure increment after 360 s of the rime icing experiment. More complicated, needlelike icicles were found to grow rapidly over the rotating spinner and fan blades under the glaze icing condition due to the combined effects of the aerodynamic forces and the centrifugal forces associated with the rotation motion. The irregular-shaped glaze ice structures were found to induce tremendous detrimental effects on the fan rotor, making the airflow depressurized, instead of pressurized, after passing the iced fan rotor. The iced spinner-fan model was always found to consume more power, regardless of rime or glaze ice structures accreted on the fan blades.
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