低弗劳德数超临界入流两级消力池消能及尾水波的试验研究

IF 2.4 3区环境科学与生态学 Q2 ENGINEERING, CIVIL

Journal of Hydro-environment Research Pub Date : 2023-09-16 DOI:10.1016/j.jher.2023.09.001

Wei Lin , Fu-lin Cai , Chang-hai Han , Kai-wen Yu , Jin-tong Gu

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引用次数: 0

摘要

研究了两级消力池的几何参数；在Fr1＝1.1～1.85的超临界入流条件下，在水平水槽中进行了14组试验。研究了尾水的流态、相对振幅和能量耗散比。两级消力池在每个阶段都会产生水力跃变。与相应的经典跃变相比，两级消力池的消能率可提高30%-45%。本文提出了一种计算尾水消能率和相对振幅的新方法。研究表明，采用低弗劳德数流量的两级消力池是有潜力的。

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Experimental study on energy dissipation and tailwater wave in two-stage stilling basin with supercritical inflow of low Froude number

This study investigates the geometric parameters of a two-stage stilling basin; 14 sets of tests were carried out in a horizontal flume with a supercritical inflow of relatively low Froude number (Fr₁ = 1.1 ∼ 1.85). The flow pattern, relative amplitude of the tailwater, and energy dissipation ratio were investigated. The two-stage stilling basin led to a hydraulic jump at each stage. Compared to the corresponding classical jump, the energy dissipation ratio in the two-stage stilling basin could be increased by 30%–45%. Herein, a novel method is proposed to calculate the energy dissipation ratio and relative amplitude of the tailwater. The investigation demonstrates the potential of two-stage stilling basin with low-Froude-number flow.

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来源期刊

Journal of Hydro-environment Research ENGINEERING, CIVIL-ENVIRONMENTAL SCIENCES

CiteScore

5.80

自引率

0.00%

发文量

审稿时长

98 days

期刊介绍： The journal aims to provide an international platform for the dissemination of research and engineering applications related to water and hydraulic problems in the Asia-Pacific region. The journal provides a wide distribution at affordable subscription rate, as well as a rapid reviewing and publication time. The journal particularly encourages papers from young researchers. Papers that require extensive language editing, qualify for editorial assistance with American Journal Experts, a Language Editing Company that Elsevier recommends. Authors submitting to this journal are entitled to a 10% discount.