SU2-COOL: Open-source framework for non-ideal compressible fluid dynamics

IF 7.2 2区 物理与天体物理 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Computer Physics Communications Pub Date : 2024-10-28 DOI:10.1016/j.cpc.2024.109394
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Abstract

We present a fully open-source framework for the numerical simulation of Non-Ideal Compressible Fluid Dynamics (NICFD). The open-source Computational Fluid Dynamics suite SU2 is coupled to the open-source thermophysical library CoolProp, which includes state-of-the-art thermodynamic models of numerous pure fluids and mixtures relevant to applications. Accurate thermodynamic models are needed due to non-ideal operating conditions in which the fluid thermodynamics cannot be described by the simple ideal-gas law (Pv=RT). The coupling interface implements new C++ classes, which allow the automatic exchange of information between SU2 and CoolProp, and it is made directly available as an additional module integrated into the open-source SU2 suite. To assess the performance of the NICFD simulation framework, we present three test cases: a nozzle flow exhibiting non-ideal thermodynamics effects, a nozzle flow with non-monotone Mach number variation, a representative non-ideal gasdynamics effect, and a non-classical rarefaction oblique shock over a wedge. Results are verified against available experiment data and solutions obtained with different implementations of non-ideal thermodynamics in SU2. Performance of the new framework is assessed on user-friendliness, scalability, solution accuracy, and computational efficiency.
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SU2-COOL:非理想可压缩流体动力学开源框架
我们为非理想可压缩流体动力学(NICFD)的数值模拟提出了一个完全开源的框架。开源计算流体动力学套件 SU2 与开源热物理库 CoolProp 相结合,后者包含与应用相关的众多纯流体和混合物的最新热力学模型。在非理想运行条件下,流体热力学无法用简单的理想气体定律(Pv=RT)来描述,因此需要精确的热力学模型。耦合接口实现了新的 C++ 类,允许在 SU2 和 CoolProp 之间自动交换信息,并可作为集成到开源 SU2 套件中的附加模块直接使用。为了评估 NICFD 仿真框架的性能,我们提出了三个测试案例:表现出非理想热力学效应的喷嘴流、具有非单调马赫数变化的喷嘴流、具有代表性的非理想气体动力学效应以及楔形上的非经典稀释斜冲击。研究结果与现有实验数据以及在 SU2 中采用不同非理想热力学方法获得的解决方案进行了验证。在用户友好性、可扩展性、求解精度和计算效率方面对新框架的性能进行了评估。
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来源期刊
Computer Physics Communications
Computer Physics Communications 物理-计算机:跨学科应用
CiteScore
12.10
自引率
3.20%
发文量
287
审稿时长
5.3 months
期刊介绍: The focus of CPC is on contemporary computational methods and techniques and their implementation, the effectiveness of which will normally be evidenced by the author(s) within the context of a substantive problem in physics. Within this setting CPC publishes two types of paper. Computer Programs in Physics (CPiP) These papers describe significant computer programs to be archived in the CPC Program Library which is held in the Mendeley Data repository. The submitted software must be covered by an approved open source licence. Papers and associated computer programs that address a problem of contemporary interest in physics that cannot be solved by current software are particularly encouraged. Computational Physics Papers (CP) These are research papers in, but are not limited to, the following themes across computational physics and related disciplines. mathematical and numerical methods and algorithms; computational models including those associated with the design, control and analysis of experiments; and algebraic computation. Each will normally include software implementation and performance details. The software implementation should, ideally, be available via GitHub, Zenodo or an institutional repository.In addition, research papers on the impact of advanced computer architecture and special purpose computers on computing in the physical sciences and software topics related to, and of importance in, the physical sciences may be considered.
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