摘要
建立某型防冰腔的CFD分析模型,研究射流孔孔径d、射流孔与热气冲击面间距H以及射流孔排列形式对蒙皮的换热系数和防冰效率的影响规律。分析表明:d与H的比值是影响防冰腔性能的重要因素,d/H越大,换热效果越好,防冰系统的防冰效率也相应降低;采用交叉排列的笛形管模型换热系数与传热效率比同等条件下平行排列的模型效果好。研究结果为防冰腔的改进设计提供了指导。
A certain type of anti-icing CFD analysis model of cavity is established, the effects of jet nozzle diameter（d）, spacing（H） of jet nozzle to target, and structure of jet nozzle on heat transfer coefficient and efficiency are investigated. Analysis shows that：The ratio of d to H is the main factor that influences the properties of anti-icing cavity, and the ratio of d to H is bigger, the heat transfer effect is better however, the efficiency of antiicing system also reduced accordingly; Both heat transfer coefficient and thermal efficiency of staggered piccolo tube model are greater than that of parallel piccolo tube model under the same condition. The results provide guidance for the anti-icing cavity improved design.
出处
《航空制造技术》
2015年第15期46-49,共4页
Aeronautical Manufacturing Technology
基金
航空科学基金项目(2011ZA53014)
西北工业大学基础研究基金项目(JC20110255
JC20100232)
西北工业大学研究生创业种子基金项目(Z2013054)资助
关键词
热气防冰
传热系数
传热效率
Hot air anti-icing Heat transfer coefficient Thermal efficiency
