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Design of an optimal ramjet inlet using meta-heuristic optimization scheme

机译:使用元启发式优化方案设计最佳Ramjet入口

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A supersonic inlet plays a predominant role in obtaining the optimal thrust in a ramjet engine. Since there are no moving parts in a ramjet, the air gets compressed by the formation of a series of oblique and normal shock along the inlet to ensure that combustion occurs at subsonic flow. Generation thrust is depends on the inlet aerodynamic design, so there is a need for an optimal design for the maximum efficiency. In this work, design of optimal inlet design is carried out using the meta-heuristic optimization scheme. Initially, the Bezier curve parameterization method and QuickerSim flow analysis tool are coupled with genetic algorithms to parametrize the inlet design and to identify the total pressure recovery over an inlet respectively. The objective function of optimization scheme is to design the optimal inlet design by maximizing the total pressure recovery under a constraint. The complete cycle is coded in Matlab platform to reduce the computational cost.
机译:超音速入口在获得Ramjet发动机中的最佳推力方面起着主要作用。 由于在拉姆喷嘴中没有移动部件,因此空气通过沿着入口的形成一系列倾斜和正常冲击而被压缩,以确保在子流中发生燃烧。 生成推力取决于入口空气动力学设计,因此需要最高效率的最佳设计。 在这项工作中,使用元启发式优化方案进行最佳入口设计的设计。 最初,Bezier曲线参数化方法和QuickerSim流量分析工具与遗传算法耦合到参数化入口设计,并分别识别入口上的总压力恢复。 优化方案的目标函数是通过在约束下最大化总压力恢复来设计最佳入口设计。 完整的循环在MATLAB平台中编码,以降低计算成本。

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