We present a successful deployment of high-fidelity Large-Eddy Simulation (LES) technologies based on spectral/hp element methods to industrial flow problems, which are characterized by high Reynolds numbers and complex geometries. In particular, we describe the numerical methods, software development and steps that were required to perform the implicit LES of a real automotive car, namely the Elemental Rp1 model. To the best of the authors' knowledge, this simulation represents the first fifth-order accurate transient LES of an entire real car geometry. Moreover, this constitutes a key milestone towards considerably expanding the computational design envelope currently allowed in industry, where steady-state modelling remains the standard. To this end, a number of novel developments had to be made in order to overcome obstacles in mesh generation and solver technology to achieve this simulation, which we detail in this paper. The main objective is to present to the industrial and applied mathematics community, a viable pathway to translate academic developments into industrial tools, that can substantially advance the analysis and design capabilities of high-end engineering stakeholders. The novel developments and results were achieved using the academic-driven open-source framework Nektar++.

中文翻译：

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通过光谱/马力元素方法对高性能公路车进行行业相关的隐式大涡模拟

我们展示了基于光谱/hp 元素方法的高保真大涡模拟 (LES) 技术对工业流动问题的成功部署，这些问题的特点是高雷诺数和复杂的几何形状。特别是，我们描述了执行真正汽车的隐式 LES 所需的数值方法、软件开发和步骤，即 Elemental Rp1 模型。据作者所知，该模拟代表了整个真实汽车几何形状的第一个五阶准确瞬态 LES。此外，这构成了显着扩展目前工业中允许的计算设计范围的关键里程碑，其中稳态建模仍然是标准。为此，为了克服网格生成和求解器技术中的障碍以实现这种模拟，必须进行许多新的开发，我们在本文中对此进行了详细介绍。主要目标是向工业和应用数学界展示一条将学术发展转化为工业工具的可行途径，它可以大大提高高端工程利益相关者的分析和设计能力。使用学术驱动的开源框架 Nektar++ 实现了新颖的发展和成果。这可以大大提高高端工程利益相关者的分析和设计能力。使用学术驱动的开源框架 Nektar++ 实现了新颖的发展和成果。这可以大大提高高端工程利益相关者的分析和设计能力。使用学术驱动的开源框架 Nektar++ 实现了新颖的发展和成果。