Numerical simulation study on propeller slipstream interference of high altitude long endurance unmanned air vehicle

摘要：

　　In this paper,the control equation of Multiple Reference Frame(MRF)as the propeller calculation model was present and analyzed,the propeller slipstream interference on HALE UAV was studied with three-dimensional numerical simulation.It is shown that the flow field of the MRF model is good consistent with true propeller flow,and MRF can accurately simulate aerodynamic interference on the aircraft.The stream traces on the V-tail surface were deflected and shrank,pressure distribution,Cmx and Cmz on V-tail surface was changed apparently too.But slipstream had little effect on wing.The influence of propeller slipstream on the aerodynamic performance of the UAV at the status of taking off is biggest,become weaker at status of climbing and smallest at the status of cruising.The influence of propeller slipstream is enhanced with increment of propeller thrust and basically familiar in the same thrust between the two blade attack angle.The pressure drag on aft of UAV fuselage increased rapidly by the interference of propeller slipstream,leading aerodynamic performance of UAV become badly.

关键词： unmanned air vehicle(UAV) propeller slipstream multiple reference frame(MRF) computational fluid dynamics(CFD) numerical simulation

作者: Guangqiang Chen Bingyan Chen Pengfei Li Peng Bai Chuqun Ji

作者单位: The Institute of aerodynamics theories and application of China Academy of Aerodynamic of Aerospace(CAAA),Beijing,100074,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）