Compression waves in semi-circular channel

IF 1.1 4区工程技术 Q3 ENGINEERING, CIVIL

Proceedings of the Institution of Civil Engineers-Water Management Pub Date : 2022-02-04 DOI:10.1680/jwama.21.00022

Emelia Dara Soechiarto, D. Wűthrich, H. Chanson

引用次数: 0

Abstract

Partially-filled pipe flows are commonly observed in urban hydraulics, sewers and road crossings. The occurrence of a compression wave in the confined space may result from flash flooding, transient operation or accidental blockage, inducing explosive conditions. In this study, the propagation of a compression wave was studied in a relatively large-size laboratory flume with a semi-circular cross-section. The unsteady flow properties were recorded to understand how the circular cross-sectional shape impacted onto the surging water propagation. Both free-surface and velocity data indicated a marked impact of the compression wave passage, with large instantaneous fluctuations comparable and sometimes larger than observations of compression waves in rectangular channels.

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半圆信道中的压缩波

在城市水力学、下水道和十字路口中，经常观察到部分填充的管道流动。在密闭空间内发生压缩波，可能是由于突发性淹水、瞬态操作或意外堵塞而诱发爆炸。在这项研究中，压缩波的传播研究在一个比较大的实验室水槽与半圆截面。记录了非定常流动特性，以了解圆形截面形状对激流传播的影响。自由表面和速度数据都表明压缩波通道有明显的影响，其瞬时波动与矩形通道中压缩波的观测值相当，有时甚至更大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Civil Engineers-Water Management 工程技术-工程：土木

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Water Management publishes papers on all aspects of water treatment, water supply, river, wetland and catchment management, inland waterways and urban regeneration. Topics covered: applied fluid dynamics and water (including supply, treatment and sewerage) and river engineering; together with the increasingly important fields of wetland and catchment management, groundwater and contaminated land, waterfront development and urban regeneration. The scope also covers hydroinformatics tools, risk and uncertainty methods, as well as environmental, social and economic issues relating to sustainable development.