A robust overset assembly method allowing for multiple overlapping bodies is presented. This method extends the overset assembly method to deal with the interference between objects and prevents the failure of the search for donor cells due to the complex shape of the models. The donor cells are searched before identifying the boundary of the chimera interpolation. By selecting interpolation cells only in areas with donor cells, the final overset interpolation boundary cells can always find their donor cells, which prevents orphan points and achieves excellent robustness. First, the implementation of the proposed assembly method is described in detail. Subsequently, the usability and efficiency of the method are verified using several cases. Finally, the integration strategy of the computational fluid dynamics solver based on overset interpolation with the modification of the boundary type is described and verified using practical cases with overlapping bodies. The results demonstrate the applicability of the proposed overset grid assembly method.

中文翻译：

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多个重叠物体的稳健的过顶装配方法

提出了一种鲁棒的组装方法，允许多个重叠的物体。该方法扩展了覆盖组装方法，以处理对象之间的干扰，并防止了由于模型的复杂形状而导致搜索供体细胞失败。在识别嵌合体插值的边界之前搜索供体细胞。通过仅在具有施主单元的区域中选择内插单元，最终的重叠内插边界单元始终可以找到其施主单元，从而防止了孤立点并获得了出色的鲁棒性。首先，详细描述所提出的组装方法的实现。随后，使用几种情况验证了该方法的可用性和效率。最后，描述并验证了基于重叠插值和边界类型修改的基于内插的计算流体动力学求解器的集成策略。结果证明了所提出的过高网格装配方法的适用性。