空气动力学学报Issue(6)：848-853,6.DOI:10.7638/kqdlxxb-2012.0215
热气防冰腔结构参数对其热性能影响研究
Influence of the structural parameters on thermal performance of the hot air anti-icing system
摘要
Abstract
The hot air anti-icing system is one of the important ways to prevent aircraft icing.Numerical simulation method was carried out to study the influence of the structural parameters on the thermal per-formance of the hot air anti-icing system.The hot air flow and heat transfer in the anti-icing cavities with different nozzle-to-surface height,number of the nozzle rows and hot air jet angle were simulated using the computational fluid dynamics (CFD)method.The thermal efficiency of the anti-icing system and the convec-tive heat transfer coefficient distribution of the skin inner surface were obtained.The results show that:1) with the increase of the nozzle-to-surface height in the range of 4mm to 36mm,the thermal efficiency of the anti-icing system reduces and the heat transfer performance of the hot air impinging on the surface weakens, 2)with consistent flow flux,the thermal efficiency of the anti-icing system increases from three to two noz-zle rows,3)the thermal efficiency improves with the 15°rotation of the hot air jet angle along the upper sur-face direction,indicating that the surface curvature effects the jet surface heat transfer performance.The results presented in this paper can help to the design of the anti-icing cavity.关键词
热气防冰腔/热效率/结构参数/表面传热系数Key words
hot air anti-icing cavity/thermal efficiency/structural parameter/surface heat transfer coef-ficient分类
航空航天引用本文复制引用
彭珑,卜雪琴,林贵平,马文涛,赵凯..热气防冰腔结构参数对其热性能影响研究[J].空气动力学学报,2014,(6):848-853,6.基金项目
国家自然科学基金（51206008）；航空基金 （）
