高超声速非定常流动的数值模拟与气动热计算

高超声速飞行器研究中的一个重点问题是飞行器表面的气动加热,它对飞行器的气动、热特性及安全性有重要的影响.受到当前实验技术的限制,地面实验无法准确模拟真实飞行条件,所以采用数值模拟研究气动加热问题成为目前重要的研究手段.本文采用数值方法求解三维N-S方程,得到钝头体再入模型绕流的瞬态流场,驻点温度及表面热流沿轨道变化规律.计算中采用变边界条件模拟沿轨道飞行的非定常性.

Numerical simulation of unsteady hypersonic flow and aerodynamic heating calculation

One of the major concerns of high speed flight vehicle design is the aerodynamic heating problem of flight vehicle surface,which performs vital influence on the aerodynamic performance and safety of flight vehicles.Restrained by current experimental technology,the ground experimental facility can not reproduce real flight condition for aerothermodynamics research.As a result,numerical simulation plays a vital role in the research of aerodynamic heating of high speed flight vehicle.The objective of this thes...