南京航空航天大学学报（英文版）2023，Vol.40Issue(6)：653-662,10.DOI:10.16356/j.1005-1120.2023.06.003
航空发动机内冰晶的融化特性和积冰特性
Melting and Accumulation Characteristics of Ice Crystals in Aero-engines
摘要
Abstract
Ice crystal icing has the potential to induce engine damage or flameout,posing a serious threatening to flight safety.Therefore,it is of great importance to improve the precision of ice crystal icing prediction.Considering the effect of blade thickness,we develop a numerical model to simulate the entire process of ice crystal icing.The influences of airflow parameters,ice crystal suction position and blade thickness are examined on the characteristics of ice crystal melting and accumulation.The findings show a high melting rate of ice crystals at high air velocities,accompanied by a relatively short heat transfer duration,resulting in a low liquid water content.The trajectories of ice crystals at different suction positions are simulated,which reveals that elastic collision occurs at the first two blades,while adhesion takes place at the last three blades.The effect of blade thickness is found to be significant.The ice accumulation area is expanded,the main ice accumulation is shifted toward stators backwards,and the ice accumulation in each stator is more concentrated after taking blade thickness into account.关键词
冰晶结冰/气流参数/融化特性/碰撞行为/积冰特性Key words
ice crystal icing/airflow parameters/melting characteristics/collision behavior/ice accumulation characteristics分类
航空航天引用本文复制引用
陈佳军,刘秀芳,钟富豪,苗庆硕,郑勉,魏震,侯予..航空发动机内冰晶的融化特性和积冰特性[J].南京航空航天大学学报（英文版）,2023,40(6):653-662,10.基金项目
This study is supported by the Key Laboratory of Icing and Anti/de-icing of CARDC(No.IADL 20220107),the National Science and Technology Major Special Funds of China(No.J2019-Ⅲ-0010-0054),and the National Natural Science Foundation of China(No.52076164). （No.IADL 20220107）
