Eilmer: An open-source multi-physics hypersonic flow solver

This paper introduces Eilmer, a general-purpose open-source compressible flow solver developed at the University of Queensland, designed to support research calculations in hypersonics and high-speed aerothermodynamics. Eilmer has a broad userbase in several university research groups and a wide range of capabilities, which are documented on the project's website, in the accompanying reference manuals, and in an extensive catalogue of example simulations. The first part of this paper describes the formulation of the code: the equations, physical models, and numerical methods that are used in a basic fluid dynamics simulation, as well as a handful of optional multi-physics models that are commonly added on to do calculations of hypersonic flow. The second section describes the processes used to develop and maintain the code, documenting our adherence to good programming practice and endorsing certain techniques that seem to be particularly helpful for scientific codes. The final section describes a half-dozen example simulations that span the range of Eilmer's capabilities, each consisting of some sample results and a short explanation of the problem being solved, which together will hopefully assist new users in beginning to use Eilmer in their own research projects.

本文介绍了由昆士兰大学研发的通用开源可压缩流求解器Eilmer，该求解器旨在支撑高超声速与高速空气热动力学领域的研究计算工作。Eilmer拥有广泛的用户群体，覆盖多所高校的研究团队，且具备丰富的功能模块，相关文档可通过项目官网、配套参考手册以及海量示例仿真案例库获取。
本文第一部分阐述了该求解器的实现范式：涵盖基础流体动力学仿真所用的控制方程、物理模型与数值方法，以及常用于高超声速流场计算的若干可选多物理场模型。
第二部分介绍了该求解器的开发与维护流程，阐述了团队对良好编程规范的遵循情况，并推介了若干对科学计算代码尤为实用的技术方案。
最后一部分展示了覆盖Eilmer全功能应用场景的六个示例仿真案例，每个案例均包含仿真结果样本与待求解问题的简要说明，以期帮助新用户快速上手，将Eilmer应用于自身的研究项目中。

搜集汇总

背景与挑战

背景概述

该数据集介绍了Eilmer，一个由昆士兰大学开发的开源可压缩流求解器，专用于高超声速和高速度气动热力学研究。它具有广泛的功能和用户基础，包括详细的代码公式化描述、开发维护过程，以及多个示例模拟，以支持用户在研究项目中应用。