The Taylor–Green vortex as a benchmark for high-fidelity combustion simulations using low-Mach solvers
The Taylor–Green vortex as a benchmark for high-fidelity combustion simulations using low-Mach solvers
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泰勒-格林涡作为使用低马赫求解器进行高保真燃烧模拟的基准
DOI：
10.1016/j.compfluid.2021.104935
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发表时间：
2021
影响因子：
2.8
通讯作者：
D. Thévenin
中科院分区：
文献类型：
--
作者：
A. Abdelsamie;G. Lartigue;C. Frouzakis;D. Thévenin
验证和确认是任何数值模型开发的关键步骤。虽然已经为商业计算流体动力学 (CFD) 代码建立了合适的流程，但高保真求解器必须面临更困难的挑战。一系列专门会议针对无反应配置提出了基准。然而，据我们所知，关于湍流反应流还没有提出合适的方法。本文的目的是为用于模拟湍流反应流的高分辨率代码提供完整的验证和确认链，首先是在低马赫数限制下进行燃烧的直接数值模拟 (DNS)。所选配置建立在泰勒-格林涡旋之上。通过与二维解析解进行比较来进行验证。通过与使用伪谱代码获得的已发布结果进行比较，确保单组分流的验证。然后考虑不发生反应的混合，最后计算与 3-D 泰勒-格林涡流相互作用的氢氧火焰。本研究使用了三个低马赫数 DNS 求解器，表明对于所有考虑的量，模拟的最终精度约为 1%。所有数据集均可在 [1] 下公开获取。最后从单节点结果和并行效率方面讨论了代码的性能。
Verification and validation are crucial steps for the development of any numerical model. While suitable processes have been established for commercial Computational Fluid Dynamics (CFD) codes, more difficult challenges must be faced for high-fidelity solvers. Benchmarks have been proposed in a series of dedicated conferences for non-reacting configurations. However, to our knowledge, no suitable approach has been proposed regarding turbulent reacting flows. The purpose of this article is to present a full verification and validation chain for high-resolution codes employed to simulate turbulent reacting flows, first for Direct Numerical Simulation (DNS) of combustion in the limit of low Mach numbers. The selected configuration builds on top of the Taylor–Green vortex. Verification takes place by comparison with the analytical solution in two dimensions. Validation of the single-component flow is ensured by comparisons with published results obtained with a pseudo-spectral code. Mixing without reaction is then considered, before computing finally a hydrogen-oxygen flame interacting with a 3-D Taylor-Green vortex. Three low-Mach number DNS solvers have been used for this study, demonstrating that the final accuracy of the simulations is of the order of 1% for all quantities considered. All data-sets are publicly available under [1]. The performance of the codes is finally discussed, both in terms of single-node results and regarding parallel efficiency.
即时跟踪火焰表面以对燃烧过程进行可视化分析
影响因子：
2.5
作者：
Oster T;Abdelsamie A;Motejat M;Gerrits T;Rössl C;Thévenin D.;Theisel H.
通讯作者：
Theisel H.
影响因子：
2.8
作者：
Abdelsamie, Abouelmagd;Fru, Gordon;Thevenin, Dominique
通讯作者：
Thevenin, Dominique