水利水电科技进展2026，Vol.46Issue(1)：1-10,23,11.DOI:10.3880/j.issn.1006-7647.2026.01.001
宽顶堰泄流水上噪声影响因素及其频谱特征研究
Influencing factors and spectral characteristics of water noise induced by flow over broad-crested weir
摘要
Abstract
To reduce the water noise induced by flow over broad-crested weirs and provide a basis for engineering optimization,a combined approach integrating physical model experiments and numerical simulations was adopted to investigate the influencing factors and spectral characteristics of the water noise.Physical model experiments were conducted to examine the effects of upstream discharge,downstream water depth,and weir height on the sound pressure level of water noise and the root mean square of fluctuating pressure.Quantitative relationships between the water noise sound pressure level and these influencing factors were established,and the A-weighted spectral characteristics of the water noise were analyzed.Numerical simulations were employed to investigate the effects of droplets and bubble clusters on water noise and reveal the causes of variations in the A-weighted spectrum.The results show that both the sound pressure level of water noise and the root mean square of fluctuating pressure are positively correlated with upstream discharge and weir height,and negatively correlated with downstream water depth.Among these factors,upstream discharge exhibits the most significant influence,followed by downstream water depth and weir height.High-frequency noise generated by bubble bursting leads to the dominant frequency of the A-weighted spectrum of water noise being located in the high-frequency range.Increasing the upstream discharge and weir height raises the high-frequency sound pressure level in the A-weighted spectrum,whereas increasing the downstream water depth reduces the high-frequency sound pressure level.关键词
水上噪声/宽顶堰/脉动压力均方根/回归分析/频谱分析/气泡破裂Key words
water noise/broad-crested weir/root mean square of fluctuating pressure/regression analysis/spectrum analysis/bubble bursting引用本文复制引用
王大国,余涛,水庆象,陈雨欣,范艺..宽顶堰泄流水上噪声影响因素及其频谱特征研究[J].水利水电科技进展,2026,46(1):1-10,23,11.基金项目
国家自然科学基金项目(42171108) （42171108）
