泥沙研究2024，Vol.49Issue(3)：10-17,8.DOI:10.16239/j.cnki.0468-155x.2024.03.002
大东湖有压深隧淤积数值模拟研究
Numerical simulation of sedimentation in pressurized deep tunnel of Donghu Lake
摘要
Abstract
Based on the Godunov-type finite-volume method,a one-dimensional numerical model is developed to simulate hydrodynamics-solid transport-bed deformation in pressurized pipeline.This model is then employed to predict the sedimentation process in the deep tunnel of Donghu Lake and the hydraulic flushing effect after deposition is also investigated.It is found that sedimentation will not occur during long-term running under the current operating conditions.Nevertheless,when encountering extreme situations that result in solid concentration reaching a certain level,obvious sedimentation will occur along the pipeline.About 16～24 hours are needed to flush out the pre-deposits when the maximum deposition height in the pipeline reaches 30 cm.关键词
有压管道/管道冲淤/HLLC求解器/深隧/窄缝法Key words
pressurized pipeline/erosion and deposition in pipeline/HLLC solver/deep tunnel/slot method分类
建筑与水利引用本文复制引用
卢新华,程卓,汤丁丁,陈燕平..大东湖有压深隧淤积数值模拟研究[J].泥沙研究,2024,49(3):10-17,8.基金项目
国家自然科学基金项目(52179078) （52179078）
