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高空长航时飞行器应具有升阻比高和俯仰力矩小的气动特性。基于遗传算法的随机性和隐含并行性,结合适用于多目标处理的Pareto方法,在低雷诺数和跨声速条件下,展开了高空长航时飞行器机翼外形的多目标、多设计点的数值优化设计。仿真计算结果表明,所设计的机翼具有较高的升阻比和较低的俯仰力矩,同时在设计马赫数附近升阻比的变化比较平稳,具有良好的综合气动性能。
High-altitude long-haul aircraft should have aerodynamic characteristics of high lift-drag ratio and low pitching moment. Based on the randomness and implicit parallelism of genetic algorithm, combined with the Pareto method suitable for multi-objective processing, under low Reynolds number and transonic speed conditions, the multi-target and multi-design point Numerical Optimization Design. The simulation results show that the designed wing has high lift-drag ratio and low pitching moment, and the change of the ratio of lift-drag ratio is relatively stable near the design Mach number with good comprehensive aerodynamic performance.