| 管内气固两相流型频谱-层析识别技术 |
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| 引用本文： | 潘卫国,李杨,聂雪军,曹绛敏,王启杰,岑可法. 管内气固两相流型频谱-层析识别技术[J]. 化工学报, 2001, 52(9): 775-781 |
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| 作者姓名： | 潘卫国 李杨 聂雪军 曹绛敏 王启杰 岑可法 |
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| 作者单位： | 上海电力学院; 浙江大学 |
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| 基金项目： | 上海市青年科技启明星计划 (No .98QF14 0 40 )资助项目 |
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| 摘 要： | 基于压力脉动信号的频谱特性和管截面图像重建算法 ,以及提出的流型脉动 -层析模糊判别法则 ,对工程中经常遇到的均匀流、层状流以及有“堵管”危险的流动进行了有效的检测 ,发现本文所提出的用压力脉动信号的频谱特征 ,依据管截面图像重建算法 ,在流型脉动 -层析模糊判别法则下 ,对水平管内流型的检测是可行的 ,并且检测结果与现场观察到的流型相一致
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| 关 键 词： | 气固两相流 流型 识别 工程流体力学 脉动频谱 压力脉动信号 管截面 层析成像 图像重建 |
| 文章编号： | 0438-1157(2001)09-0775-07 |
| 修稿时间： | 2000-07-12 |
CONFIRMING GAS-SOLID FLOW PATTERN IN TUBE WITH SPECTRUM-TOMOGRAPY IDENTIFICATION TECHNOLOGY |
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| PAN Weiguo,LI Yang,NIE Xuejun,CAO Jiangmin,WANG Qijie,CEN Kefa. CONFIRMING GAS-SOLID FLOW PATTERN IN TUBE WITH SPECTRUM-TOMOGRAPY IDENTIFICATION TECHNOLOGY[J]. Journal of Chemical Industry and Engineering(China), 2001, 52(9): 775-781 |
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| Authors: | PAN Weiguo LI Yang NIE Xuejun CAO Jiangmin WANG Qijie CEN Kefa |
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| Abstract: | Based on the frequency spectrum of pressure fluctuation of gas-solid two-phase flow and tube cross-section image reconstruction algorithm, as well as improved code with fluctation-tomography fuzzy discriminant analysis, uniform flow and stratified flow and the flow at which blockage of tube might happen were effectively detected by some experiments. These tomographic results demonstrate,that it is feasible to detect the flow pattern in horizontal tube by use of pressure fluctuation spectrum signature and tube cross-section image reconstruction algorithm with fluctuation-tomography fuzzy discriminant analysis. |
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| Keywords: | gas-solid two-phase flow flow pattern spectrum frequency tomography |
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