摘要
介绍了AEDC(Arnold Engineering Development Center)结冰缩比方法,并对其有效性问题,用数值仿真方法进行了验证.利用结冰仿真计算软件对NACA0012翼型及其1/2和1/3缩比模型、圆柱及其1/2缩比模型进行了结冰数值模拟,内容涉及流场、水滴撞击特性和冰生长计算等.缩比部件的结冰条件由AEDC方法确定.结果表明,翼型、圆柱与其缩比模型的结冰过程具有较好的相似性.说明AEDC方法科学合理,其确定的结冰缩比试验参数有效,同时也说明结冰模拟技术可用于结冰缩比相似性研究.
The arnold engineering development center （AEDC） icing scaling method was introduced and validated through numerical simulation. By icing modeling software, icing numerical simulations were performed for NACA0012 airfoil and its 1/2 and 1/3 scale models, cylinder and its 1/2 scale model. Flow field, droplets impingement and ice accretion computations were all included in the simulations. Scaling icing condi- tions were chosen according to AEDC method. The results show that the reference and scaling icing process have a wonderful similarity. It can be concluded that the AEDC method is effective and icing numerical simulation can be used in icing similarity research.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2009年第6期692-696,共5页
Journal of Beijing University of Aeronautics and Astronautics
关键词
结冰缩比
相似理论
数值仿真
icing scaling
theory of similarity
numerical simulation
