南京航空航天大学学报（英文版）2021，Vol.38Issue(6)：984-992,9.
矩形埋入式进气口结构参数对飞机性能的影响
Effects of Geometric Parameters on Performance of Rectangular Submerged Inlet for Aircraft
摘要
Abstract
To improve the comfortability and safety of aircraft,the demand of rectangular submerged inlets(RSIs)with low resistance is proposed to increase the inlet flow rate of ram air.A theoretical model is built to numerically analyze the effects of geometric parameters on the inlet mass flow rate of RSIs.The geometric parameters in question here encompass the aspect ratio of 2-4,the ramp angle of 6°—7°,the characteristic parameter of the throat of 0.20-0.30,the ramp length of 939-1 337 mm,and the cone angle of 0°—3°.Simulation results demonstrate that the mass flow rate(MFR)is positively correlated with the aspect ratio,ramp angle,ramp length,and cone angle,and negatively correlated with characteristic parameter of the throat.Within the range of the geometric parameters considered,the RSI with the aspect ratio of 3,the ramp angle of 6°,the characteristic parameter of the throat of 0.20,the ramp length of 1 337 mm,and the cone angle of 3° obtains the largest MFR value of about 2.251 kg/s.关键词
冲压空气系统/矩形埋入式进气口/结构参数/质量流量Key words
ram air system/rectangular submerged inlet/geometric parameter/mass flow rate(MFR)分类
航空航天引用本文复制引用
刘超,裴后举,陈常栋,徐文冰,杨凯杰..矩形埋入式进气口结构参数对飞机性能的影响[J].南京航空航天大学学报（英文版）,2021,38(6):984-992,9.基金项目
This work was supported by the Open Project of Key Laboratory of Aircraft Environment Control and Life Support,MIIT(No.KLAECLS-E-202001). （No.KLAECLS-E-202001）
