水利水电科技进展2024，Vol.44Issue(1)：23-28,6.DOI:10.3880/j.issn.1006-7647.2024.01.004
生物附着现象对有压输水工程过流能力的影响
Effect of fouling organism attachment on flow capacity of pressurized water diversion system
摘要
Abstract
Aiming at the adverse effects of wall concrete spalling,effective cross section reduction and water quality deterioration due to the phenomenon of biological fouling occurring frequently in Chinese water diversion projects,based on water diversion project in the middle route of the South-to-North Water Diversion Project,laboratory model experiments were carried out under different area ratios,and porous media domain was used to simulate the three-dimensional flow field of a pressurized pipeline under biological attachment dominated by limnoperna fortune.The influence of limnoperna fortunei attachment on the flow capacity of the pressurized pipeline was analyzed.The results show that the flow in the pressurized pipe presents the main flow deviation,and the particle momentum exchange near the wall is more intense.Section roughness was positively correlated with the attachment thickness and the area ratio.At low density,the main influencing factor was the attachment number of limnoperna fortunei.At high density,adhesion thickness is the main factor.关键词
有压输水工程/淡水壳菜/糙率影响/多孔介质仿真Key words
pressurized water diversion project/limnoperna fortunei/roughness effects/porous media simulation分类
建筑与水利引用本文复制引用
张建建,张社荣,刘涵,王超,王枭华,姜佩奇,崔溦..生物附着现象对有压输水工程过流能力的影响[J].水利水电科技进展,2024,44(1):23-28,6.基金项目
天津市自然科学基金(21JCYBJC00410) （21JCYBJC00410）
