论文部分内容阅读
通过紧耦合方法对超声速流动与结构温度场进行耦合计算。首先介绍了超声速气动加热的基本理论,其次利用Fluent软件对初步设计的双头导引头火箭橇进行气动加热仿真分析,建立了流体-热耦合的仿真分析方法,得出不同时刻导引头与陪试品表面对应点的表面温度在逐渐升高,但是增长幅度在逐渐减小,两者具有相同的变化趋势;不同时刻导引头与陪试品表面对应点的热流具有相同的变化趋势,是逐渐下降的。对以后在双头导引头火箭橇试验中,映射、推导导引头表面的温度具有重要的指导意义。
The coupling between supersonic flow and structure temperature field is calculated by the method of compact coupling. First of all, the basic theory of ultrasonic aerodynamic heating is introduced. Secondly, the aerodynamic heating simulation of a dual-head seeker rocket skid designed by Fluent is used to establish the fluid-thermal coupling simulation analysis method. At the same time, The surface temperatures of the corresponding points on the surface of the test piece gradually increased, but the growth rate gradually decreased, both of them had the same trend. The heat flux at the corresponding points on the surface of the test piece and the test piece had the same trend at different times, Is gradually declining. It is of great guiding significance to map and derive the surface temperature of seeker in the future research of rocket sled.