| 应用电阻层系成像技术测量垂直管道气/液两相流分相含率 |
| |
| 引用本文： | 董峰,乔旭彤,姜之旭,徐苓安.应用电阻层系成像技术测量垂直管道气/液两相流分相含率[J].天津大学学报(自然科学与工程技术版),2004,37(6):510-514. |
| |
| 作者姓名： | 董峰 乔旭彤 姜之旭 徐苓安 |
| |
| 作者单位： | 天津大学电气与自动化工程学院,天津300072 |
| |
| 基金项目： | 国家自然科学基金资助项目(50276043),"863"计划资助项目(2001AA413210). |
| |
| 摘 要： | 通过对垂直管道中气／液两相流截面相含率测量影响因素的分析,以电阻层析成像系统为检测工具,提出了提取原始测量数据边界特征值的方法和描述气／液两相流截面相含率的特征函数,得到了气／液两相流的截面含气率,仿真计算与实验测试结果表明,在研究导电的液相为连续相的气／液两相流情况下的分相含率时,上述方法是一种有效的测量手段．
|
| 关 键 词： | 两相流 分相含率 电阻层析成像 特征提取 |
| 文章编号： | 0493-2137(2004)06-0510-05 |
| 修稿时间： | 2003年1月21日 |
Void Fraction Measurement of the Gas-Liquid Two-Phase Flows in Vertical Pipes Using Electrical Resistance Tomography |
| |
| DONG Feng,QIAO Xu-tong,JIANG Zhi-xu,XU Ling-an.Void Fraction Measurement of the Gas-Liquid Two-Phase Flows in Vertical Pipes Using Electrical Resistance Tomography[J].Journal of Tianjin University(Science and Technology),2004,37(6):510-514. |
| |
| Authors: | DONG Feng QIAO Xu-tong JIANG Zhi-xu XU Ling-an |
| |
| Abstract: | Based on the analysis of the factors influencing void fraction of gas-liquid two-phase flows in vertical pipes, using Electrical Resistance Tomography (ERT), a method of analyzing the data characteristics of boun- (dary) voltage of ERT and extracting the characteristic value is proposed. Furthermore the characteristic function of void fraction of gas-liquid two-phase flows is presented. Accordingly void fraction of gas-liquid two-phase flows in vertical pipes can be obtained. The emulational and experimental results show that the accuracy of void fraction measurement is satisfactory and this method is valid for gas-liquid two-phase flows in which the electric liquid is continuous phase. |
| |
| Keywords: | two-phase flow void fraction ERT (electrical resistance tomography) characteristic extraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
