水利水电科技进展2025，Vol.45Issue(4)：9-15,7.DOI:10.3880/j.issn.1006-7647.2025.04.002
室前分岔布置的长廊形引水调压室涌波特性
Surge wave characteristics of a corridor-shaped water-diversion surge chamber with bifurcation layout upstream
许冬宇 1周建旭 1马朵2
作者信息
- 1. 河海大学水利水电学院,江苏 南京 210098
- 2. 中国电建集团西北勘测设计研究院有限公司,陕西 西安 710065
- 折叠
摘要
Abstract
Based on the method of characteristics for hydraulic transient analysis in pressurized water conveyance systems,both simplified and refined mathematical models were derived to characterize the hydraulic behavior of a corridor-shaped water-diversion surge chamber with bifurcation layout upstream.Corresponding computational models for the hydraulic transition process of the water conveyance and hydropower systems were established,with a focus on investigating the surge wave characteristics,local flow regime,and their impacts on regulation guarantee calculations under asymmetric operation conditions.The computational results show that compared with the simplified model,the refined model can accurately describe the hydraulic characteristics of the corridor-shaped surge chamber.While obtaining the extreme values of surge waves and parameters for regulation guarantee calculations,the refined model precisely captures the attenuation characteristics of water level fluctuations in the surge chamber under asymmetric operation conditions.Under asymmetric operation conditions of the units,significant longitudinal flows occur within the corridor-shaped surge chamber,which may affect the hydraulic oscillation characteristics and stability of the system under certain conditions.关键词
输水发电系统/水力过渡过程/调压室/涌波特性/特征线法/数学模型Key words
water conveyance and hydropower system/hydraulic transient process/surge chamber/surge wave characteristics/method of characteristics/mathematical model分类
建筑与水利引用本文复制引用
许冬宇,周建旭,马朵..室前分岔布置的长廊形引水调压室涌波特性[J].水利水电科技进展,2025,45(4):9-15,7.
