一种电磁流量计权函数仿真求解方法  

Simulation Method for the Weight Function of Electromagnetic Flowmeter

作　　者：刘立朋[1] 白磊[1] 王经卓[2] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008 [2]淮海工学院电子工程学院,江苏连云港222005

出　　处：《淮海工学院学报（自然科学版）》2016年第3期35-40,共6页Journal of Huaihai Institute of Technology:Natural Sciences Edition

摘　　要：电磁流量计权函数的求解是电磁流量计研究领域的一个热点.基于对传统单对电极电磁流量计流量微分方程的求解结果,引入Sherlicff权函数,给出多对电极情况下,电磁流量计权函数的表达式.在COMSOL Multiphysics中建立电磁流量计仿真模型,采用有限元数学分析的方法,将管道测量横截面微元化划分,仿真求解出流速微元所在位置与每对电极相对应的权函数值,进而验证权函数理论求解结果与仿真求解结果具有一致性.The solution of the weight function of the electromagnetic flow meter is a hot spot in the research field of the electromagnetic flowmeter. Based on the solution of the traditional single pair of electrode electromagnetic flowmeter flow differential equation results, the Sherlicff weight function is introduced, and the expression of the weight function of the electromagnetic flowmeter is given. The simulation model of electromagnetic flowmeter is established in COMSOL Mul- tiphysics. By using the finite element mathematical analysis method, the pipeline measurement cross-section is divided infinitesimally, gets the location of flow rate infinitesimal with each pair of electrodes corresponding weight function value through simulation, which verifies that the weight function theory solution results and simulation solution results are consistent.

关 键 词：权函数 有限元 流速微元 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]