不同形状的侧门的排放性能不同
Veysi Kartal1, M Emin Emiroglu2, M Fatih Yuksel3
1Engineering Faculty, Department of Civil Engineering, Firat University, 23119, Elazig, Türkiye; Engineering Faculty, Department of Civil Engineering, Siirt University, 56000, Siirt, Türkiye
概括
这项研究研究了用于开放通道流量测量的侧面吸入结构. 三角形和半圆形门在特定条件下显示出更高的放电系数,从而产生了一个新的可靠方程.
科学领域:
- 土木工程 土木工程是指土木工程.
- 环境工程 环境工程
- 流体力学 流体力学 流体力学
背景情况:
- 准确的流量测量和水位控制在开放道中对于有效的水资源管理至关重要.
- 侧吸管结构是各种土木和环境工程应用中必不可少的组件.
研究的目的:
- 实验性地研究矩形,三角形和半圆形侧面吸入门的流量特性.
- 为了确定各种参数对不同门形状的排放系数的影响.
- 开发一个可靠的排放系数在开放通道的流量可靠的预测方程.
主要方法:
- 在亚临界流量条件下进行了357次实验运行.
- 进行了相关性分析,以确定影响放电系数的有影响力的参数.
- 经过测试的矩形,三角形和半圆形门形状.
主要成果:
- 上游的Froude数 (F1),门口与流水深度的比率,以及门长与流水深度的比率对所有门形状的排放系数有显著的影响.
- 三角形侧门在0.40 < F1 < 0.98时显示出更高的放电系数,而半圆形门在0.05 < F1 < 0.40时显示出更高的放电系数.
- 开发了一个新的,可靠的方程来预测侧门的放电系数,与实验数据有很好的一致性.
结论:
- 门形状显著影响开放通道流量的排放系数和效率.
- 开发的方程为工程师在设计和管理侧面吸入结构方面提供了有价值的工具.
- 通过不同的门几何学来理解流动动力学是优化水资源管理系统的关键.
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