国家自然科学基金(50974095)

作品数：9被引量：46H指数：4
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相关机构：天津大学天津电子信息职业技术学院更多>>
相关期刊：《Chinese Physics B》《Chinese Journal of Chemical Engineering》《物理学报》《Petroleum Science》更多>>
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Liquid holdup measurement with double helix capacitance sensor in horizontal oil-water two-phase flow pipes被引量：6
《Chinese Journal of Chemical Engineering》2015年第1期268-275,共8页翟路生 金宁德 高忠科 王振亚 
Supported by the National Natural Science Foundation of China(50974095,41174109,61104148);the National Science and Technology Major Projects(2011ZX05020-006)
This paper presents the characteristics of a double helix capacitance sensor for measurement of the liquid holdup in horizontal oil–water two-phase flow. The finite element method is used to calculate the sensitivity...
关键词：Horizontal oil–water two-phase flow Liquid holdup measurement Double helix capacitance sensor Flow pattern 
Multifractal analysis of inclined oil-water countercurrent flow
《Petroleum Science》2014年第1期111-121,共11页Zhu Lei Jin Ningde Gao Zhongke Zong Yanbo 
supported by the National Natural Science Foundation of China(Grant Nos.41174109,61104148,50974095);the National Science and Technology Major Projects(Grant No.2011ZX05020-006)
Characterizing countercurrent flow structures in an inclined oil-water two-phase flow from one-dimensional measurement is of great importance for model building and sensor design.Firstly,we conducted oil-water two-pha...
关键词：Inclined oil-water two-phase flow magnitude correlation multifractal spectrum nonlinear dynamics 
The Finite Element Analysis for Parallel-wire Capacitance Probe in Small Diameter Two-phase Flow Pipe被引量：1
《Chinese Journal of Chemical Engineering》2013年第7期813-819,共7页翟路生 金宁德 高忠科 黄旭 
Supported by the National Natural Science Foundation of China （50974095, 41174109, 61104148）, and the National Science and Technology Mai or Projects （2011ZX05020-006）.
This paper presents a novel capacitance probe, i.e., paraUel-wire capacitance probe （PWCP）, for two-phase flow measurement. Using finite element method （FEM）, the sensitivity field of the PWCP is investigated and ...
关键词：parallel-wire capacitance probe finite element analysis sensitivity field oil-water stratified flow 
Markov transition probability-based network from time series for characterizing experimental two-phase flow被引量：1
《Chinese Physics B》2013年第5期226-231,共6页高忠科 胡沥丹 金宁德 
Project supported by the National Natural Science Foundation of China ( Grant Nos. 61104148, 41174109, and 50974095);the National Science and Technology Major Project of the Ministry of Science and Technology of China (Grant No. 2011ZX05020-006);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110032120088)
We generate a directed weighted complex network by a method based on Markov transition probability to represent an experimental two-phase flow. We first systematically carry out gas-liquid two-phase flow experiments f...
关键词：complex network time series analysis chaotic dynamics two-phase flow pattern 
动力学变换法探测连续系统不稳定周期轨道
《物理学报》2012年第17期119-127,共9页马文聪 金宁德 高忠科 
国家自然科学基金(批准号:50974095;41174109;61104148)资助的课题~~
本文利用动力学变换方法和庞加莱截面方法对两种连续混沌动力学系统进行不稳定周期轨道探测研究,并对Lorenz系统进行了替代数据法检验.结果表明:基于庞加莱截面的动力学变换改进算法可有效探测连续混沌动力学系统中的不稳定周期轨道.
关键词：不稳定周期轨道 动力学变换 连续混沌动力系统 庞加莱截面 
Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows被引量：1
《Chinese Journal of Chemical Engineering》2012年第5期870-882,共13页朱雷 金宁德 高忠科 杜萌 王振亚 
Supported by the National Natural Science Foundation of China (50974095, 41174109);Gao Zhongke (高忠科) was also supported by the National Natural Science Foundation of China (61104148);the National Science and Technology Major Projects (2011ZX05020-006);Specialized Research Fund for the Doctoral Program of Higher Education of China(20110032120088);the Independent Innovation Foundation of Tianjin University
Based on the conductance fluctuation signals measured from vertical upward oil-gas-water three-phase flow experiment, time frequency representation and surrogate data method were used to investigate dynamical characte...
关键词：oil-gas-water three-phase flow conductaJace fluctuating signals time-frequency representation surrogate data method 
两相流相空间多元图重心轨迹动力学特征被引量：5
《物理学报》2012年第9期331-338,共8页赵俊英 金宁德 
国家自然科学基金(批准号:50974095;41174109);国家科技重大专项(批准号:2011ZX05020-006)资助的课题~~
本文提出了一种新的混沌时间序列高维相空间多元图重心轨迹动力学特征提取方法.在确定了最佳嵌入维数和延迟时间后,将相空间中高维矢量点映射到二维平面的雷达图上,相应地将相空间中高维矢量点变换为对应的几何多边形,通过提取几何多边...
关键词：两相流 高维相空间 重心轨迹 流型动力学 
基于有限穿越可视图的时间序列网络模型被引量：26
《物理学报》2012年第3期86-96,共11页周婷婷 金宁德 高忠科 罗跃斌 
国家自然科学基金项目(批准号:50974095;41 174109);国家高技术研究发展计划(批准号:2007AA062231)资助的课题~~
提出了一种改进的时间序列有限穿越可视图建网方法,并对三种可视图(可视图、水平可视图、有限穿越可视图)网络度分布进行了评价.结果表明:水平可视图网络均无法有效识别各类时间序列信号(周期、分形、混沌);对分形信号,可视图及有限穿...
关键词：复杂网络 统计特性 有限穿越可视图 模型评价 
An unsupervised grid-based approach for clustering analysis被引量：7
《Science China(Information Sciences)》2010年第7期1345-1357,共13页YUE ShiHong WANG JeenShing TAO Gao WANG HuaXiang 
supported by the National Natural Science Foundation of China (Grant Nos. 60772080, 60572065,50974095);the Tianjin Science Foundation (Grant No. 08JCYBJC13800)
In recent years, the growing volume of data in numerous clustering tasks has greatly boosted the existing clustering algorithms in dealing with very large datasets. The K-means has been one of the most popular cluster...
关键词：CLUSTERING grid-based algorithm K-means algorithm 
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