Thermal Feature Analysis of a New Hot-Air Anti-Icing Structure

作     者：LIANG Jiuli XUAN Yimin LIAN Wenlei LIANG Jiuli;XUAN Yimin;LIAN Wenlei

作者机构：School of Energy and Power EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China Key Laboratory of Thermal Management and Energy Utilization of Aviation VehiclesMinistry of Industry and Information TechnologyNanjing 210016China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2023年第32卷第3期

页      面：911-921页

核心收录：

学科分类：08[工学] 082504[工学-人机与环境工程] 0825[工学-航空宇航科学与技术] 

主　　题：ice accretion hot air anti-icing foam metal heat transfer 

摘      要：Ice accretion on surfaces of the aircraft and engine is a serious threat to the flight *** this paper,a novel hot air anti-icing method is proposed based on the porous *** the NACA0012 airfoil as an example,the traditional thermal protection structure is proved to exist the deficiency in balancing the heat exchange caused by route loss of the *** dividing the hot chamber into multiple regions to fill with various foam metal,flow resistance characteristics and heat transfer characteristics for this protection mode are analyzed in order to derive the maximized benefit in anti-icing *** calculation results reveal that,under the same condition,the region filled with foamed copper not only improves the temperature uniformity on the anti-icing area,but also achieves a better protection effect for enhancing heat transfer between the tube and the hot gas,averagely above 20℃higher than it without porous foam filling in surface ***,the minimum mass flow rate of the protection hot air is reduced by 16.7%.The gratifying efficiency of the porous filler in fortifying heat transfer confirms the potential of replacing the efficient but complex heat transfer design with simple structure filled with foam metal.