Abstract: An optimization model was established for integrated scramjet design. Under the condition of integrated design requirement, performance mach and parameters optimization of the inlet/combustor/nozzle were researched. Genetic Algorithms (GA) based on parallel virtual machine (PVM) was introduced to reduce the large calculation when using CFD methods in the optimization design. An operational, economical and reliable method was developed to resolve the optimization design including complex flowfield calculation.

Key words: Supersonic combustion;Ramjet engine;Integrated design;Optimization design;Numerical simulation

摘要： 建立了超燃冲压发动机一体化设计的优化模型,研究了超燃冲压发动机在总体性能要求与约束条件下,进气道、燃烧室(含隔离段)、尾喷管之间的性能匹配和参数优化。针对将计算流体力学(CFD)方法应用到优化设计过程中所带来的运算量巨大的问题,引入了基于PVM(并行虚拟机)的遗传算法,为包含有复杂流场计算过程的优化设计问题提出了一条易于实现并经济、可靠的解决途径。

关键词: 超音速燃烧;冲压喷气发动机;一体化设计;最优设计;数值仿真