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首页> 外文期刊>The Aeronautical Journal >An implicit hybrid method for the computation of rotorcraft flows
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An implicit hybrid method for the computation of rotorcraft flows

机译：计算旋翼飞机流量的隐式混合方法

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摘要

There is a wide variety of CFD grid types including Cartesian, structured, unstructured and hybrids, as well as, numerous methodologies of combining these to reduce the time required to generate high-quality grids around complex configurations. If the grid methodologies were implemented in different codes, they should be written in such a way as to obtain the maximum performance from the available computer resources. A common interface should also be required to allow for ease of use. However, it is very time consuming to develop, maintain and add extra functionally to different codes. This paper examines the possibility of taking an existing CFD solver, the Helicopter Multi-Block (HMB) CFD method, and implementing a new grid type while reusing as much as possible the original code base. The paper presents some of the challenges encountered in extending the code which was written for a single mesh type, to a more flexible solver that is still computationally efficient but can cope with a variety of grid types.
机译：有各种各样的CFD网格类型，包括笛卡尔，结构化，非结构化和混合，以及将这些方法组合在一起以减少围绕复杂配置生成高质量网格所需的时间的众多方法。如果网格方法是用不同的代码实现的，则应以从可用计算机资源中获得最大性能的方式编写它们。还应该要求一个通用接口，以使其易于使用。但是，开发，维护和向不同的代码添加额外的功能非常耗时。本文研究了采用现有的CFD求解器，直升机多块（HMB）CFD方法并实现新的网格类型，同时尽可能多地重用原始代码库的可能性。本文提出了将针对单个网格类型编写的代码扩展到更灵活的求解器的挑战，该求解器在计算上仍然有效，但可以应付多种网格类型。

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