基于Fluent软件的SABR反应器流场模拟  

Numerical Simulation of Flow Field in a Split-feed Anaerobic Baffled Reactor Based on Fluent Software

作　　者：吴春笃[1] 朱国锋[1] 解清杰[1] 王延民[1] 刘兴[1] 

机构地区：[1]江苏大学环境学院,江苏镇江212013

出　　处：《工业安全与环保》2010年第11期3-5,共3页Industrial Safety and Environmental Protection

基　　金：国家"十一五"重大水专项资助项目(2008ZX07317-001)

摘　　要：分段进水厌氧折流板反应器(SABR)是一种高效的污水生物处理反应器,流场十分复杂。运用通用商业计算流体力学(CFD)软件Fluent对SABR反应器进行流场模拟,用Solidwork建立反应器流场实体模型,采用分块结构化网格技术实现了适用于复杂形体的分块结构化网格的计算程序,采用修正的k-epsilon双方程湍流模型以及滑移网格法(SG)处理反应区。分别考察了进水流量为0.276,0.420,0.840,1.680 L/h时厌氧反应器的速度场、压力场以及湍动性能。结果表明,计算所选模型能较准确地预测反应器流场情况,模拟结果与实测结果比较符合,具有较高的参考价值,对今后SABR反应器的进一步研究与改进有着十分重要的意义。The split-feed anaerobic baffled reactor（SABR） is one kind of efficient biological sewage treatment reactor,and the flow filed in SABR is very complex.Numerical simulation on the flow field in the SABR reactor is presented by using the computational fluid dynamics（CFD） software package Fluent.The full-scale mockup is erected with Solidwork software.A computational program suitable to establish a block-structured mesh of complex body is compiled by the block-structured method.The modified k-epsilon turbulence model and the sliding mesh method are used to describe the flow in the reactor.The velocity,pressure and turbulence performance in the reactor are investigated at inlet flow rate of 0.276,0.420,0.840,1.680 L/h.The result shows that Fluent could exactly simulate detailed information of the flow field in the reactor.The simulation comforms to the fact and the information would be very useful in experimental investigation and amelioration of the SABR reactor.

关 键 词：厌氧反应器 计算流体力学 模拟 

分 类 号：X703[环境科学与工程—环境工程]