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为了进一步研究乘波体的气动性能和实用性,探究其在飞行器设计中的应用价值,针对影响乘波体气动性能的外形几何参数、非设计状态、前缘钝化半径等参数进行了数值计算和分析,并对乘波体外形进行了优化改进。研究结果表明:乘波体的前缘曲线决定了其外形参数和气动性能,而前缘曲线受自由流面影响;非设计状态下,乘波体依然具有较理想的升阻比;前缘钝化处理使得乘波体下表面高压气流上泄到上表面,降低了乘波体的升阻比;外形优化使乘波体的实用性得到显著提高,并保持较高的升阻比;乘波体构型具有应用于高超声速飞行器前体外形设计的优势和潜力。
In order to further study the aerodynamic performance and practicality of the multiplication wave body, its application value in the aircraft design is explored. Parameters such as shape geometry parameters, non-design state, leading edge passivation radius and so on, And analysis, and optimize and improve the shape of multiplication wave body. The results show that the frontier curve of the multiplier body determines its shape parameters and aerodynamic performance, while the frontier curve is affected by the free-flow surface. In the non-designed state, the multiplier body still has a better lift-drag ratio. The high-pressure airflow on the lower surface of the multiplier body can be dissipated to the upper surface, reducing the ratio of the lift-drag ratio of the multiplier body. The shape optimization can significantly improve the practicability of the multiplier body and maintain a high lift-drag ratio. The configuration has the advantages and potential to be applied in the design of hypersonic vehicle precursors.