摘要
为了解新型旋翼推进式无人飞艇推进旋翼与气囊之间的气动作用,通过流体仿真、采用SIMPLE算法和Spalart-Allmaras湍流模型对两种旋翼安装方案的气动特性进行了模拟分析,并初步确定了旋翼安装方式及结构。数值模拟结果表明,推进式安装方式推进效率远比拉进式安装方式要高,旋翼与气囊之间的距离对推进效率有一定的影响。
In order to understand the aerodynamic interaction between the propelling rotor wing and the airbag of the new type unmanned airship with rotor propelled, aerodynamic characteristics of the rotor wings installed with two schemes was simulated and analyzed with the fluid simulation method, the SIM- PLE algorithm and the Spalart-Allmaras turbulence model. Then the rotor arrangement and installation structure were preliminarily determined. The numerical simulation results show that for the rotor on the airbag, the propulsive efficiency of the propulsion arrangement form is higher than the drawing-in arrangement form. The distance between the rotor and the airbag has a certain influence on the propulsion efficiency.
作者
王璐
王云
陈宇
WANG Lu WANG Yun CHEN Yu(School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, Chin)
出处
《飞行力学》
CSCD
北大核心
2017年第5期22-25,30,共5页
Flight Dynamics
基金
国家自然科学基金资助(51266012)
关键词
无人飞艇
气囊
推进旋翼
数值模拟
unmanned airship
airbag
propelling rotor
numerical simulation
