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雨水检查井局部损失对雨水系统过流能力的影响 被引量:6

Impact of Minor Losses in Manholes on Flow Capacity of Storm Drainage System
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摘要 在目前国内雨水管道的设计中,检查井内局部损失通常被忽略。通过Fluent软件对检查井内水流情况进行三维流动仿真分析,得到部分类型检查井的局部损失系数,经分析,检查井内局部损失占沿程损失的比例远远大于10%,目前忽略检查井局部损失影响的设计处理方式将造成较严重的误差。 Minor losses in manholes are usually ignored in current design of storm drainage system in China. The three-dimensional simulation and analysis of flow in a manhole were conducted using Flu- ent, a CFD software, and minor loss coefficients of manholes were obtained. The results show that the minor losses in manhole manholes are far more than 10% of total head loss. The design method ignoring the impact of minor losses in manholes will make serious errors.
作者 林金海
出处 《中国给水排水》 CAS CSCD 北大核心 2010年第20期34-38,共5页 China Water & Wastewater
关键词 雨水检查井 局部损失 排水系统 stormwater manhole minor loss drainage system
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