基于CFD对污水管道通风数学模型的验证  

Verification of Ventilation Mathematical Model in Sanitary Sewers Using Computational Fluid Dynamics

作　　者：卢金锁[1] 丁超[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《中国给水排水》2014年第21期67-70,共4页China Water & Wastewater

基　　金：陕西省青年科技新星项目(2012KJXX-32);人社部留学人员科技活动项目;国家自然科学基金资助项目(51008242)

摘　　要：污水管道中聚集着各种有害气体,当达到爆炸极限时,遇明火易发生爆炸。目前污水管道的设计基本只考虑对污水的输送,对于管道内气体计算考虑不多。利用他人所提出的数学模型进行一段污水管道通风计算,并利用CFD对比验证其准确性,所使用的软件为Fluent。通过计算,数学模型和CFD模拟结果能较好地吻合,并且发现越靠近跌水井的检查井处空气流量越大。There are various harmful gases in sanitary sewers, when reaching the explosion limit, they can easily cause an explosion. However, municipal sewers are generally designed to only transport sewage without giving consideration to gases in sewers. The ventilation in a length of sanitary sewers was calculated by using the mathematical model proposed by other people, and the accuracy of this model was validated using CFD. The software used was Fluent. The mathematical model agreed with the CFD result essentially, and the inspection shaft had a lager air flow when it was close to the drop shaft.

关 键 词：污水管道 有害气体 模型计算 CFD 

分 类 号：TU992.0[建筑科学—市政工程]