空气动力学学报2011，Vol.29Issue(6)：744-750,7.
变形飞机动态气动特性数值模拟研究
Numerical simulation of dynamic aerodynamic characteristics of a morphing aircraft
摘要
Abstract
In this paper, a morphing aircraft is designed firstly based on the references, and the unsteady and pseudo-steady aerodynamic characteristics are simulated numerically by a steady/unsteady flow solver based on the dy namic unstructured grids developed by the authors. The transonic inviscid flow is considered only in the simulations. The effect of folding and unfolding speed is studied and compared with each other. The numerical results show that the unsteady aerodynamic characteristics of the morphing aircraft change rapidly, because the shock wave on the upper surface of the morphing wing moves forward/backward during the process of wing folding/unfolding. Therefore, the design of the flight control law should be paid more attention for morphing aircrafts.关键词
非定常流动/折叠翼/变形飞机/动态网格Key words
unsteady flow/ folding wing/ morphing aircraft/ dynamic grid分类
航空航天引用本文复制引用
郭秋亭,张来平,常兴华,赫新,GUO Qiu-ting..变形飞机动态气动特性数值模拟研究[J].空气动力学学报,2011,29(6):744-750,7.基金项目
国家自然科学基金(91016001,10872023) （91016001,10872023）
国家重大基础研究计划(2009CB723802) （2009CB723802）
