相关实验视频
Updated: Jun 12, 2025

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Determining 3D Flow Fields via Multi-camera Light Field Imaging
Published on: March 6, 2013
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三维里曼问题的流场数据
Nils Hoppe1, Nico Fleischmann1, Benedikt Biller1
1Chair of Aerodynamics and Fluid Mechanics, Technical University of Munich, Boltzmannstr. 15, 85748 Garching, Germany.
Data in brief
|September 23, 2024
概括
这项研究提出了用于验证可压缩流量解决器的新的3D里曼问题,揭示了常见的解决器问题. 这些数据可以进行定量比较,以提高计算流体动力学 (CFD) 的准确性.
科学领域:
- 计算流体动力学 (CFD) 是一种计算流体动力学.
- 流体力学 流体力学 流体力学
- 数字分析 数字分析
背景情况:
- 对于可压缩流量溶解器的现有验证案例仅限于1D或2D,无法捕捉固有的3D流量的复杂性.
- 精确模拟3D可压缩流动对于各种工程和科学应用至关重要.
研究的目的:
- 为验证和验证可压缩流量解决器引入真正的三维 (3D) 里曼问题.
- 提供模拟数据,突出现有解决方案的常见缺陷,如虚假振荡和对称性破坏.
- 为了促进不同解决器和数值方法之间的定量比较.
主要方法:
- 使用开源ALPACA可压缩流量解决器模拟3D里曼问题.
- 使用HLLC和Roe Riemann解答器和第五阶WENO重建实现有限体积方案.
- 在高性能计算集群 (>300核心) 上进行模拟.
主要成果:
- 为3D里曼问题生成模拟数据,旨在诱导3D效应并触发解决器缺陷.
- 识别诸如虚假的压力振荡,非物理的对称性破坏,以及溶解器性能中的冲击干扰等问题.
- 提供原始流域数据,输入文件,后处理脚本和可视化.
结论:
- 提供的数据集为严格验证3D可压缩流量溶解器提供了宝贵的资源.
- 三维里曼问题有效地揭示了当前数值方法的局限性.
- 附带的数据有助于进行可复制的研究和开发更强大的CFD工具.
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