由交替衍射器产生的曲流的速度场和流结构
Jie-Min Zhan1, Wing-Hong Onyx Wai2, Yu-Tian Li3,4
1Department of Applied Mechanics and Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, China.
Scientific reports
|April 2, 2024
概括
这项研究模拟了使用衍射器在直径道中曲的流量. 结果显示,一个稳定的,高速的区域形成,导致圆的扫孔和旋结构.
科学领域:
- 流体动力学 流体动力学
- 河流工程 河流工程
- 计算式水力学 计算式水力学
背景情况:
- 在自然河流中,曲的流量是常见的,原因是河岸的冲洗.
- 这种现象在工程道 (如水泥道) 中是罕见的.
- 了解人工通道中的流动动态对于基础设施设计至关重要.
研究的目的:
- 为了研究一条直径的人工通道中曲的流动模式的形成.
- 分析双交替衍射器对流量特性的影响.
- 为了理解由此产生的扫孔和旋动态.
主要方法:
- 使用实验性扫地地形数据.
- 执行了衍射器之间的流量的数值模拟.
- 分析了流动路径,速度区域和扫描形成.
主要成果:
- 一个下游的偏流器改变了从上游的偏流器加速的流量路径.
- 一个稳定的,狭窄的,高速的区域下游形成.
- 一个圆的扫孔与一个大规模的旋结构开发,受马旋的影响.
结论:
- 双交替的衍射器可以在直径通道中诱导曲的流动.
- 诱导的流动会产生局部的扫描和复杂的旋动态.
- 这些发现为控制人工水道的侵蚀和流动模式提供了洞察力.
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