在通道-管道交叉点的分离区的3D数值模拟
Bin Sun1, Linqin Feng2, Zhiwei Li2
1Yellow River Laboratory, Zhengzhou University, Zhengzhou 450001, China
概括
调查90度通道-管道交叉点揭示了独特的分离区特征和尾水效应. 该研究详细介绍了影响分离区形状和体积的螺旋细胞,这对于了解流量和污染物运输至关重要.
科学领域:
- 流体力学的流体力学
- 环境工程环境工程
- 液压工程 液压工程是指水利工程.
背景情况:
- 交汇区对道的流量,污染物运输和结构完整性有重大影响.
- 了解隔离区动态对于液压结构设计和环境管理至关重要.
研究的目的:
- 为了研究90°通道-管道交叉点的分离区的几何特征.
- 分析与隔离区相关的尾水效应.
- 为了将这些特征与在道或河流交汇处观察到的特征区分开来.
主要方法:
- 流动动力学的实验研究.
- 数字模拟以建模分离区和尾水效应.
- 对几何参数和流动模式的分析.
主要成果:
- 分离区与侧墙脱离,呈现圆形状,内部有压缩.
- 螺旋流细胞与侧墙附近的相反方向影响分离区的几何形状.
- 分离区体积与排放比率和水面高度相关,主要由动量比率驱动.
- 尾水效应受排放率和水面高度的影响,与隔离区体积呈正相关性.
结论:
- 与传统交叉点相比,90°通道-管道交叉点具有明显的分离区特征.
- 动量比被确定为控制分离区体积的关键因素.
- 尾水效应与分离区体积之间存在显著的关系,影响了液压过程.
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