TY - JOUR
TI - Numerical study on aerodynamic heat of hypersonic flight
AU - Huang Haiming
AU - Xu Jing
AU - Xie Weihua
AU - Xu Xiaoliang
JN - Thermal Science
PY - 2016
VL - 20
IS - 3
SP - 939
EP - 944
PT - Article
AB - Accurate prediction of the shock wave has a significant effect on the  development of space transportation vehicle or exploration missions. Taking  Lobb sphere as the example, the aerodynamic heat of hypersonic flight in  different Mach numbers is simulated by the finite volume method. Chemical  reactions and non-equilibrium heat are taken into account in this paper,  where convective flux of the space term adopts the Roe format, and  discretization of the time term is achieved by backward Euler algorithm. The  numerical results reveal that thick mesh can lead to accurate prediction, and  the thickness of the shock wave decreases as grid number increases.  Furthermore, most of kinetic energy converts into internal energy crossing  the shock wave.