空气动力学学报Issue(4)：554-562,9.DOI:10.7638/kqdlxxb-2014.0013
一种推进式螺旋桨无人机滑流效应影响研究
Numerical simulation study on propeller slipstream effect on unmanned air vehicle with propeller engine
摘要
Abstract
For the layout design of an Unmanned Air Vehicle (UAV)with propeller engine, application of three dimensional numerical simulation method on the slipstream aerodynamic effect is investigated based on Multiple Reference Frame (MRF)model.The reseach results shown that the flow field of the MRF model is consistent with true propeller flow,and MRF sim-ulates aerodynamic interference accurately.The influence of propeller slipstream on the aerody-namic performance of an UAV at the status of taking off is most significant,becomes weaker at the status of climbing and the least at the status of cruising.The influence of propeller slipstream is enhanced with the increment of propeller thrust and keeps nearly the same if two sets of pro-peller who have same thrust but different blade attack angle.The pressure drag on the afterbody of the UAV fuselage increases rapidly because of the effect of propeller slipstream flow,deterio-rates the aerodynamic performance of the UAV evidently.关键词
无人机/螺旋桨滑流/多参考系模型/计算流体力学/数值模拟Key words
Unmanned Air Vehicle(UAV)/propeller slipstream/Multiple Reference Frame (MRF)/Computational Fluid Dynamics(CFD)/numerical simulation分类
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陈广强,白鹏,詹慧玲,纪楚群..一种推进式螺旋桨无人机滑流效应影响研究[J].空气动力学学报,2015,(4):554-562,9.基金项目
国家自然科学基金重点项目 （）
