航空工程进展2025，Vol.16Issue(3)：163-171,9.DOI:10.16615/j.cnki.1674-8190.2025.03.17
倾转机翼无人机过渡状态气动特性研究
Study on aerodynamic characteristics of tilting wing unmanned aerial vehicle in transition state
摘要
Abstract
In response to the problem of the continuous tilting transition process of the configuration of unmanned aerial vehicle with complex and unsteady aerodynamic characteristics,the real blade is replaced with a virtual pro-peller disk model,the rotor flow field is calculated by adding momentum source terms.The dynamic grid technolo-gy is combined to perform unsteady aerodynamic simulation of the flow field.The aerodynamic interference and lift resistance characteristics of the flow field near the rotor/fixed wing are calculated and analyzed,and the model is es-tablished and the forward flight speed tilt angle motion equation is iteratively fitted for the transition section motion state.The results show that the initial tilting state of the unmanned aerial vehicle is less affected by the downwash flow of the rotor,and the main lift is provided by the fixed wing.During the tilting process at a tilt angle of 30°～50°,the resistance of the tilting rotor wing section increases,and the required pulling force of the rotor increases.The lift of the outer section of the tilting wing decreases due to the interference of the downwash flow of the rotor,and the main lift effect is borne by the rotor in the final stage of tilting.关键词
倾转机翼无人机/虚拟桨盘模型/过渡状态/重叠网格/动网格技术/气动特性Key words
tilting wing unmanned aerial vehicle/virtual rotor model/transition state/overlapping grid/dynamic grid technology/aerodynamic characteristics分类
航空航天引用本文复制引用
马凯,林长亮,潘明龙,王熊,陆洋..倾转机翼无人机过渡状态气动特性研究[J].航空工程进展,2025,16(3):163-171,9.基金项目
直升机动力学全国重点实验室基金项目(2023HALB06710) （2023HALB06710）
