油水两相流ECT系统电场特性数值分析及参数优化  

Numerical Analysis of Electrical Field characteristics and Parameter Optimization for Electrical Capacitance Tomography System of Oil/water Two-phase Flows

作　　者：陈德运[1] 李谋遵[1] 师国臣[2] 于晓洋[1] 

机构地区：[1]哈尔滨理工大学计算机科学与技术学院,黑龙江哈尔滨150080 [2]大庆油田采油工程研究院,黑龙江大庆163453

出　　处：《系统仿真学报》2007年第7期1434-1438,1488,共6页Journal of System Simulation

基　　金：国家自然科学基金(60572153);国家教育部重点科技项目(204043);黑龙江省重点科技攻关项目(GC05A510);黑龙江胜自然科学基金(F200609);黑龙江省骨干教师创新计划项目(10551043);哈尔滨市重点科技攻关项目(2005AA1CG035)。

摘　　要：以12电极油水两相流电容层析成像系统为研究对象,介绍了电容层析成像系统的工作原理及数学模型,采用有限元方法对传感器灵敏度分布(敏感场)进行计算和仿真,通过采用不等间距网格完成了传感器场域的自动剖分,分析了各个传感器参数对传感器性能的影响,提出了传感器性能评价函数,并基于正交试验法确定了一组优化参数,为传感器的设计及研制提供参考依据。The principle of electrical capacitance tomography （ECT） is introduced, and the simulation based on the finite element method （FEM） about the sensitivity distribution of 12-electrode capacitance transducers for oil and water two-phase flow system is discussed. Unequal mesh spacings are adopted in automatic plotting and the influence that the structural parameters of transducers impose on the performance of ECT is studied. The optimum design of transducer is achieved to improve the performance of transducers based on the given optimum function by the method of finite element and orthogonal test design, which offers reference for the design and development of transducers.

关 键 词：电容层析成像 数值计算 有限元方法 敏感度分布 正交试验法 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]