半圆信道中的压缩波

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-02-04 DOI:10.1680/jwama.21.00022

Emelia Dara Soechiarto, D. Wűthrich, H. Chanson

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引用次数: 0

摘要

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。

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Compression waves in semi-circular channel

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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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.