关键词: 超声速燃烧;氢;高能燃料;煤油;化学反应流;两相流;数值模似

Abstract: The mixing of atomized kerosene injected into a supersonic flow with hydrogen pilot flame was investigated numericalyy.Two phase flow.Upwind TVD scheme was use to solve the full Navier Stokes equations for multi species reactive system.Eulerian equations for liquid phase were solved by NND scheme.A point implicit approach was used to deal with the source term produced by gas phase chemical reactions.The phase interaction ODE equations were solved by second order Runge Kutta approach.The distributions of pressure,species density,temperature,and nominal density of kerosene were obtained.The results show that hydrogen injected from the injector downstream has a better penetration and enlarges the combustion region.The penetration of kerosene is much higher than that of hydrogen.But kerosene is less spread,and there exists a droplet free region downstream the injector.

Key words: Supersonic combustion;Hydrogen;High energy fuel;Kerosene;Reacting flow;Two phase flow;Numerical simulation