倒虹管泥沙沉积的三维数值模拟研究  

Three-dimensional Numerical Simulation of Sediment Deposition in Inverted Siphon

作　　者：王超[1] 吕梅[2] 徐海东[2] 赵晨辰[2] 王庆国[1] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]中国市政工程华北设计研究总院有限公司北京分公司,北京100081

出　　处：《中国给水排水》2017年第17期122-124,共3页China Water & Wastewater

基　　金：四川省成都市科技局项目(2015-HM01-00537-SF)

摘　　要：倒虹管中的泥沙淤积问题一直是运行管理中的一个关键问题。泥沙淤积的程度决定了整个倒虹管的运行状况,如果不及时疏通,则会对污水管路造成极大的危害。鉴于此,通过Flow 3D软件建立数学模型,对某市过河倒虹管的四个运行工况进行模拟计算。结果显示,泥沙沉积量随流量的增大而呈减小的趋势,模拟结果与物理模型试验结果具有较好的吻合度。The inverted siphon is an important facility in the drainage engineering, and the prob- lem of sediments in inverted siphons is always a key problem in the drainage management. The degree of the sediment deposition determines the operation condition of the whole inverted siphon; if not dredged in time, it will cause great damage to the sewage pipes. In this paper, the Flow 3D software was used to simulate four conditions of an inverted siphon in a city. According to the results, the amount of silt depo- sition decreased with the increase of the flow rate, which was in consistency with those physical experi- ments.

关 键 词：倒虹管 泥沙淤积 FLOW 3D软件 数值模拟 

分 类 号：X703[环境科学与工程—环境工程]