摘要
建立了高速飞行条件下,湍流流场计算和有限元分析的物理模型,利用计算流体力学方法(CFD)和有限元方法对高速飞行的红外整流罩头部流场、头罩温度分布及头罩应力、应变进行了数值计算。分析了典型条件下头罩的温度和应力分布,在此基础上提出了由气动加热所产生不利因素的解决方案,并提出了今后的研究建议。
According to the condition of high speed flight, the physical models of turbulence field and FEM are built up. The flow field and the temperature in the infrared dome are computed numerically with CFD method, the stress and strain of the dome are calculated by FEM method. The distribution of temperature and stress under the representative condition are given. Based on the results, the schemes avoiding the bad effects caused by aerodynamic heating are brought out presented. At last, some suggestions about the further research are presented.
出处
《红外技术》
CSCD
北大核心
2007年第7期373-376,共4页
Infrared Technology
