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arXiv 2602.06347physics.flu-dyn
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高阶有限差分可压缩求解器的验证

Validation of a high-order finite difference compressible solver

Korea Advanced Institute of Science and Technology(韩国科学技术院)

Yujoo Kang, Sang Lee

AI总结:

本文提出了一种基于紧凑有限差分方案的高阶可压缩求解器,并通过五个典型案例验证了其在激波捕捉和湍流模拟中的准确性与可靠性。

摘要:

本文展示了基于紧凑有限差分方案的高阶可压缩自研求解器的验证与验证。验证使用了五个典型案例:一维Sod激波管问题、二维激波剪切层相互作用、可压缩通道流、可压缩湍流边界层以及激波-湍流边界层相互作用。与精确解和参考直接数值模拟数据的比较显示,求解器在激波捕捉、涡旋结构解析以及一阶和二阶统计量的一致性方面均表现出色。

英文摘要:

The verification and validation of a high-order compressible in-house solver based on a compact finite difference scheme are presented. Validation is performed using five canonical cases: the one-dimensional Sod shock tube problem, two-dimensional shock-shear layer interaction, compressible channel flow, compressible turbulent boundary layer, and shock-turbulent boundary layer interaction. Comparisons against exact solutions and reference direct numerical simulation data demonstrate accurate shock capturing, resolution of vortical structures, and good agreement for first and second order statistics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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