Analysis and Simulation of Flow Field in the Ultrasonic Auto Backwash Filter
Flow field in the filter is simulated by using Computational Fluid Dynamics.At the same time,pressure and velocity field distribution in the filter are analyzed.The maximum differential pressure and filtration velocity of filter column are all decreasing with column height increasing which means that there are stagnant water zones on the top of filter column.This phenomenon not only has an effect on filtration efficiency,but also can lead cavitation erosion.So the structure of filer must be improved.The change of pressure and velocity on two sides of filtering material are caused by flow resistance of material with many holes.All theses analysis results of velocity and pressure field can be the basic theory for the design of high efficiency filter.
Ultrasonic filter Numerical simulation CFD Flow field Solid-liquid Separation
Jun Xie Lijun Shan
School of Mechanical Engineering,Dalian Jiaotong University,China
国际会议
广州
英文
845-849
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）