摘要
为了获得推进式旋翼飞艇的优化设计方案,探索无人飞艇横列式双旋翼之间的距离对旋翼间气动干扰以及对飞艇整体的气动力影响规律,并据此确定横列式双旋翼的安装方式,基于计算流体力学数值模拟技术,采用多重参考系模型(MRF)对横列式双旋翼及气囊整体的流场进行定常数值模拟。结果表明:旋翼自身受双旋翼安装距离的影响很小,而整机的气动性能受双旋翼距离的影响很大;综合考虑,双旋翼安装距离应略大于气囊直径。
In order to obtain the optimized design scheme of a rotor propulsion airship,explore the influence of side-by-side rotor distance on aerodynamics of the whole airship,explore the airship side-by-side rotor distance,and determine the installation mode of the side-by-side rotors based on this,the multiple reference frame（ MRF） model is used to simulate the flow field of the side-by-side rotor and the whole airbag based on the numerical simulation technologies of computational fluid dynamics. The results show that,the effect of the two rotor installation distance on the rotor is very small. The aerodynamic performance of the airship is greatly influenced by the distance between the two rotors. By comprehensive consideration,side-by-side rotor installation distance should be slightly larger than the airbag diameter.
出处
《飞行力学》
CSCD
北大核心
2018年第1期29-33,共5页
Flight Dynamics
基金
国家自然科学基金资助(51266012)
关键词
飞艇
推进旋翼
横列式双旋翼
气动性能
airship
propulsion rotor
side-by-side rotor
aerodynamic performance
