L型气固两相流管道输送有限元仿真  

L-gas-solid Two-phase Flow Pipeline Finite Element Simulation

作　　者：王志春[1] 郭聪夏 袁小健[1] 

机构地区：[1]内蒙古科技大学信息工程学院

出　　处：《江西科技学院学报》2016年第4期20-22,共3页Journal of Jiangxi University of Technology

基　　金：内蒙古自治区自然科学基金项目(NO.2014MS0609);国家自然科学基金(NO.61463041)

摘　　要：气固两相流在弯管内气速、压力都会发生显著的变化,故在弯管处采用声发射检测两相流相关参数可得到较理想的效果,但声发射探头检测位置影响测量结果。本文利用COMSOL软件对输送管道进行模拟仿真,使用CFD模块和粒子追踪模块对输送管道内颗粒-空气两相流进行数值耦合模拟。对比分析管道中不同风速时气固的流动特性和颗粒的运动轨迹。仿真发现弯管内侧压力小速度大,外侧压力大速度小,并结合Matlab分析得到声发射探头检测点最佳角度α在25°-60°,且随着风速的增加而增大。仿真结果可对输送管道中气固两相流特征参数的检测提供一定的参考。The phase flow in the elbow movement has a significant change, so the use of acoustic emission testing two-phase flow parameters obtains better results, but the position of acoustic emission sensor detecting affects the measure- ment results. Using CFD module and particle tracking module of the soft COMSOL to simulate the pipe. In different wind condition, analysis of the gas-solid flow characteristics and trajectory finds that the pressure inside of the elbow is low and the speed is high, but it is the opposite in the outside. The optimal point of Acoustic emission sensor detecting is 25°-60°, and increases with the increase of wind speed. The simulation results can provide a reference for the detection of pipe- line in the gas-sohd flow characteristic parameter

关 键 词：COMSOL 气固两相流 声发射 模拟仿真 

分 类 号：TQ022.4[化学工程]