关键词: 高超音速飞行;气动热力学;气动数据;计算

Abstract: Total temperature and total pressure of a gas flow in chemical equilibrium,isentropy with variable composition and specific heat at Mc = 0-7.0 and H= 0-40km are calculated .The results are compared with those calculated with aerodynamic function method,modifying coefficient method and the method issued by R-R company.In this paper,the variations of total temperature and pressure with Ma and H are presented.The results show that if Ma>3.00, the calculation resalts by thermodynamic method arid aerodynamic function method are remarkably different.For example: at Ma = 6.50,the relative , deviation of total temperature δT>14%, and that of total pressure δP>26%.

Key words: Hypersonic flight;Aerothermodynamics;Aerodynamic data;Computation