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首页> 外文期刊>Journal of the American Helicopter Society >Computational Fluid Dynamics-Computational Structural Dynamics Rotor Coupling Using an Unstructured Reynolds-Averaged Navier-Stokes Methodology
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Computational Fluid Dynamics-Computational Structural Dynamics Rotor Coupling Using an Unstructured Reynolds-Averaged Navier-Stokes Methodology

机译：使用非结构化雷诺平均Navier-Stokes方法的计算流体动力学-计算结构动力学转子耦合

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摘要

The focus of this paper is to discuss the unique challenges introduced through the use of unstructured grids in rotorcraft computational fluid dynamics (CFD)-computational structural dynamics (CSD) coupling. The use of unstructured grid methodology in CFD has been expanding because of the advantages in grid generation and modeling of complex configurations. However, the resulting amorphous distribution of the grid points on the rotor blade surface provides no information with regard to the orientation of the blade, in direct contrast to structured grid methodology that can take advantage of the ordered mapping of points to identify the orientation as well as simplifying airloads integration. A methodology has been developed and is described here, which now permits unstructured methods to be utilized for elastic rotary-wing simulations. This methodology is evaluated through comparison of the UH60A rotor with available flight test data for forward flight.
机译：本文的重点是讨论在旋翼飞行器计算流体力学（CFD）-计算结构动力学（CSD）耦合中使用非结构化网格所带来的独特挑战。由于在网格生成和复杂配置建模方面的优势，CFD中非结构化网格方法的使用已得到扩展。但是，与转子叶片表面上的网格点形成的无定形分布没有任何有关叶片方向的信息，这与可以利用点的有序映射来识别方向的结构化网格方法形成直接对比简化了空载集成。已经开发了一种方法，并在此处进行了描述，该方法现在允许将非结构化方法用于弹性旋翼仿真。通过将UH60A旋翼与可用于前向飞行的飞行测试数据进行比较来评估该方法。

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