With an additional wing upon the fuselage, the novel high-pressure capturing wing (HCW) configuration exhibits remarkable aerodynamic characteristics at hypersonic speeds under beneficial aerodynamic interference. This bi-wing structure can also enhance the lift at subsonic speeds, positioning HCW configuration as an excellent aerodynamic layout under wide-speed range conditions. In this paper, a single-wing principle HCW configuration is carried out to analyze the influence of the variations in the geometric parameters of the HCW on the aerodynamic performance. Drawing on extant research, four key geometric parameters of the HCW are chosen as design variables, and the hypersonic as well as supersonic conditions are selected for surrogate-based shape optimization. Utilizing polynomial response surface method and method of moving asymptotes, the single-objective optimization studies are carried out with the objectives of maximum lift-to-drag ratio at Ma = 6 and minimum drag coefficient at Ma = 3. Subsequently, the sensitivity analysis is performed for each design parameter. The above methods exhibit notable precision and favorable results. The results show that except for the leading-edge sweep angle, the other three optimization results exhibit divergent trends in their variations. The setting angle has the most significant influence on the aerodynamic forces, owing to the influences of its variation on the shock wave intensity and reflection angle. Based on the stronger intensity of shock wave, this sensitivity indices are higher at Ma = 6. The other three parameters (half-span, leading-edge sweep angle, and trailing-edge sweep angle) modify the aerodynamic forces by adjusting the area of high-pressure region on HCW. Due to the different flow field structures, optimum parameters exhibit diverse effects on lift coefficient and lift-to-drag ratio.

中文翻译：

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HCW 构型空气动力学性能的基于代理的形状优化和敏感性分析


在机身上增加了一个机翼，新颖的高压捕获翼 （HCW） 配置在有益的空气动力学干扰下在高超音速下表现出显着的空气动力学特性。这种双翼结构还可以增强亚音速下的升力，将 HCW 配置定位为宽速条件下出色的空气动力学布局。本文采用单翼原理 HCW 构型，分析了 HCW 几何参数变化对气动性能的影响。借鉴现有研究，选择了 HCW 的四个关键几何参数作为设计变量，并选择高超音速和超音速条件进行基于代理的形状优化。利用多项式响应面法和移动渐近线法，以 马 = 6 时的最大升阻比和 马 = 3 时的最小阻力系数为目标，进行了单目标优化研究。随后，对每个设计参数进行敏感性分析。上述方法表现出显著的精度和良好的结果。结果表明，除前缘扫描角外，其他 3 个优化结果在变化上均表现出不同的趋势。设置角度对空气动力的影响最大，因为它的变化对冲击波强度和反射角有影响。基于较强的冲击波强度，该敏感性指数在 马 = 6 时更高。其他三个参数 （半跨、前缘后掠角和后缘后掠角） 通过调整 HCW 上高压区域的面积来改变空气动力。 由于流场结构不同，最佳参数对升力系数和升阻比表现出不同的影响。