Abstract In this study, vortex dominated flows over a close-coupled canard-wing-body configuration at high angles of attack are studied by using the open-source flow solver, SU 2 in a parallel computing environment. Validation studies with solution adaptive grid refinements and turbulence models are first performed. The vortical flow fields due to the canard and wing vortices are assessed in terms of vortex dynamics, vortex breakdown, vortex induced surface pressure distributions and the integrated aerodynamic loads. The spanwise surface pressure distributions and vortex breakdown locations are favorably compared against the experimental and the numerical studies available in the literature. It is shown that the SU 2 flow solver equipped with the state of the art tools and models accurately predicts the vortical flow features, vortex breakdowns and the aerodynamic loads for canard-wing-body configurations at high angles of attack.

中文翻译：

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对紧密耦合的三角翼鸭翼结构涡流的数值研究

摘要 在这项研究中，通过在并行计算环境中使用开源流动求解器 SU 2，研究了大攻角下紧耦合鸭翼体结构上的涡主导流动。首先使用解决方案自适应网格细化和湍流模型进行验证研究。由鸭翼和机翼涡流引起的涡流场根据涡流动力学、涡流击穿、涡流引起的表面压力分布和综合气动载荷进行评估。展向表面压力分布和涡流击穿位置与文献中可用的实验和数值研究相比是有利的。结果表明，配备了最先进的工具和模型的 SU 2 流动求解器可以准确预测涡流特征，