固体燃料冲压发动机稳定燃烧机理研究

NUMERICAL SIMULATION OF INTEGRATED INNER FLOW IN SOLID FUEL RAMJET

利用三维有限体积TVD格式求解N-S/Euler方程组数值模拟固体燃料冲压发动机(SFRJ)突扩燃烧室、补燃室和喷管的统一内流场，研究了从亚声速、跨声速到超声速的整个工作过程，定量计算了发动机内流参数分布，初步揭示了SFRJ内复杂而稳定的工作机理，对于进一步研究该类发动机的流量及工作特性有重要意义。

The integrated inner flow of SFRJ including the mutation chamber, additional chamber and nozzle is numerically simulated by TVD scheme of N-S/Euler equations. Working processes of subsonic, transonic and supersonic field are studied, and second eddy in the combustion chamber is found. These can be used to reveal the complicated but stable working mechanism of SFRJ.