1. 重庆交通大学 航空学院,重庆,400074
2. 南京航空航天大学 航空学院,南京,210016
陈博涵(1999—),男,硕士研究生,研究方向:航空燃料系统结冰. E-mail:cb10h15@163.com
邵垒*(1989—),男,博士,讲师,研究方向:燃料系统结冰. E-mail:shaolei@cqjtu.edu.cn
纸质出版:2026
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陈博涵, 邵垒, 刘卫华, 等. 航空燃料水分低温结冰相场数值模拟[J]. 空气动力学学报, 2026, 44(2): 104−112.
Chen Bohan, Shao Lei, Liu Weihua, et al. Numerical simulation of icing in low-temperature aviation fuel using phase field method[J]. 2026, 44(2): 104-112.
陈博涵, 邵垒, 刘卫华, 等. 航空燃料水分低温结冰相场数值模拟[J]. 空气动力学学报, 2026, 44(2): 104−112. DOI: 10.7638/kqdlxxb-2024.0195
Chen Bohan, Shao Lei, Liu Weihua, et al. Numerical simulation of icing in low-temperature aviation fuel using phase field method[J]. 2026, 44(2): 104-112. DOI: 10.7638/kqdlxxb-2024.0195.
为研究不同工况下航空燃料水分低温冰晶的生长特性,依据相场理论、传热传质方程和能量守恒方程,建立了航空燃料低温结冰模型,分析了不同时刻水浓度、各向异性强度等参数对冰晶生长特性的影响。结果表明:燃料水浓度越大,固相率和枝晶直径也越大;随着各向异性强度的增加,冰晶直径呈上升趋势,最后在恒定值附近小幅波动;环境对冰晶的形态有显著的影响,当冰晶环境从空气变为燃料时,冰晶的侧枝不再生长,而冰晶的尺寸相应减小。多晶核情况下,随着时间的增加,冰晶的固相率持续增加,从
t
= 4时的
0.1584
增长到
t
= 12 时的
0.2964
,涨幅约87.1%;过冷度越大,固相率增长速度减缓得越快。该研究成果可为燃料环境下冰晶生长机理提供参考,并为工程上的防除冰方法提供借鉴。
To study the growth characteristics of low-temperature ice crystals from entrained water in aviation fuel under varying conditions
a low-temperature icing model was established based on phase-field theory
coupled with heat and mass transfer and energy conservation equations. The model was used to analyze the effects of parameters such as water concentration and anisotropy strength on ice crystal growth at different times. The results show that a higher water concentration in the fuel leads to a larger solid phase fraction and greater den
drite diameter. As the anisotropy strength increases
the ice crystal diameter increases and eventually plateaus with minor fluctuations. The surrounding environment significantly affects ice crystal morphology. When the medium changes from air to fuel
side branching is suppressed
and the primary dendrite size is reduced. Under poly-crystalline ice nucleation
the solid phase fraction increases continuously with time
growing from
0.1584
at
t
= 4 to
0.2964
at
t
= 12
representing an increase of approximately 87.1%. Meanwhile
a higher degree of subcooling leads to a more rapid deceleration in the solid phase fraction growth rate. This research can provide a reference for understanding the ice crystal growth mechanism in fuel environments and offer insights for engineering anti-icing and de-icing methods.
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