四旋翼无人机流场及气动干扰数值模拟研究  

Numerical simulation of flow field and aerodynamic interference of quad-rotor UAV

作　　者：王策 唐正飞[1] 徐培[1] 黄凯[1] WANG Ce;TANG Zheng-fei;XU Pei;HUANG Kai(National Key Laboratory of Rotorcraft Aeromechanics,NUAA,Nanjing 210016)

机构地区：[1]南京航空航天大学直升机旋翼动力学国家级重点试验室,江苏南京210016

出　　处：《飞行力学》2018年第4期83-87,共5页Flight Dynamics

基　　金：国家自然科学基金资助(U1533109)

摘　　要：主要研究了一般的四旋翼无人机在悬停和前飞状态下的流场数值模拟方法和前飞状态下的气动干扰。以普通"十"字构型布局的四旋翼无人机为例,建立了基于CFD的网格分区、旋转网格和雷诺时均方程等高精度算法的流场数值模拟方法,并进行了试验验证。以此为基础,进一步对四旋翼无人机在不同前飞状态下的气动干扰进行数值模拟,以加深理解四旋翼飞行器的空气动力学特性,可为其总体气动布局设计和飞控设计提供气动力变化规律支持。The method of numerical simulation of flow field in hover and forward flight state of general quad-rotor UAV and aerodynamic interference are studied. Take the general layout of the ＂ ＋＂ configuration of four rotor UAV as an example,a CFD-based high-precision numerical simulation method for the flow field is established,which includes mesh partition,rotating mesh and Reynolds time-averaged equation. On this basis,the UAV in different flight state aerodynamic interference was simulated on the quadrotor to deepen the understanding of aerodynamic characteristics of four rotor aircraft and to support the aerodynamic change rules for the overall aerodynamic layout design and flight control design.

关 键 词：四旋翼无人机 气动干扰 空气动力学 数值模拟 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程]