| 泡罩塔板上差压波动信号的R/S分析 |
| |
| 引用本文： | 陈雪莉,栗冬,于遵宏.泡罩塔板上差压波动信号的R/S分析[J].计算机与应用化学,2005,22(2):91-95. |
| |
| 作者姓名： | 陈雪莉 栗冬 于遵宏 |
| |
| 作者单位： | 华东理工大学洁净煤技术研究所,上海,200237;华东理工大学洁净煤技术研究所,上海,200237;华东理工大学洁净煤技术研究所,上海,200237 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)(2003AA521020) |
| |
| 摘 要： | 采用域重新标度(R/S)分析方法研究了泡罩塔板上的差压波动信号,得出泡罩塔板上差压波动信号的Hurst指数在0.33～0.49之间,<0.5说明差压波动信号具有“反持久性”。发现泡罩塔板上不同操作条件下,差压波动信号分形维数变化范围为1.51～1.67,且不同气液两相流型分形维数D存在差异:喷溅流型1.50
|
| 关 键 词： | 泡罩塔 R/S分析 Hurst指数 分形维数 |
| 文章编号： | 1001-4160(2005)02-91-95 |
R/S analysis of the differential-pressure signals of gas-liquid flow on bubble-cap tray plate |
| |
| CHEN XueLi,LI Dong,YU Zunhong.R/S analysis of the differential-pressure signals of gas-liquid flow on bubble-cap tray plate[J].Computers and Applied Chemistry,2005,22(2):91-95. |
| |
| Authors: | CHEN XueLi LI Dong YU Zunhong |
| |
| Abstract: | The differential-pressure signals of gas-liquid flow on bubble-cap tray plate have been calculated with the Rescaled Range Analysis(R/S). It has been achieved that Hurst exponents of the differential-pressure signals vary from 0.33 to 0.49. The fact that the values of Hurst exponents are less than 0.5 indicates that the differential-pressure signals are anti-permanent. Meanwhile, it has been found that under different operational conditions, the fractal dimensions(D) of the differential-pressure signals range from 1.51 to 1.67; and are distinct for the different gas-liquid flow regimes : 1.50
|
| |
| Keywords: | bubble-cap plate R/S analysis hurst exponent fractal dimension |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
