摘要
为了提高飞机热气除冰系统的性能,介绍了飞机微引射热气除冰腔的工作原理,应用FLUENT软件对7种不同结构的微引射热气除冰腔的引射性能进行了数值模拟。根据数值计算结果选出了合理的微引射系统结构,并对其工作性能进行了试验研究。数值模拟结果表明,在其他结构参数不变时,微引射系统中主射流孔间距和混合室长径比存在最佳值。将数值模拟结果与试验结果进行了对比,两者吻合良好,表明数值模拟方法可以用来对微引射热气除冰腔进行结构优化设计。
In order to improve the performance of aircraft hot-air de-icing system, the working principle of hot-air de-icer with micro-injector is introduced, and the performance of seven different hot-air de-icers with micro-injector is numerically investigated with FLUENT. According to the simulation results, the optimum structure is investigated experimentally. The results indicate that there exist best values in both injector spacing and mixing cavity aspect ratio with other parameters keeping invariant. The nu- merlca merlca results of injection ratio are in good agreement with experimental data, which indicates that nu approach could be employed in the structure optimization of hot-air de-icer with micro-injector.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2013年第3期341-346,共6页
Journal of Nanjing University of Aeronautics & Astronautics
基金
南京航空航天大学基本科研业务费专项科研基金(NS2010002)资助项目
江苏高校优势学科建设工程资助项目
关键词
微引射防
除冰系统
热气防冰系统
飞机防
除冰
试验研究
数值模拟
micro-injector anti/de-icing system
hot-air anti-icing system
aircraft anti/de-icing
experi ment research
numerical simulation