›› 2014, Vol. 23 ›› Issue (12): 120502-120502.doi: 10.1088/1674-1056/23/12/120502

• GENERAL • 上一篇    下一篇

Multi-scale complexity entropy causality plane: An intrinsic measure for indicating two-phase flow structures

窦富祥a, 金宁德a, 樊春玲a, 高忠科a, 孙斌b   

  1. a School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China;
    b College of Metrological and Engineering, China Jiliang University, Hangzhou 310018, China
  • 收稿日期:2014-05-07 修回日期:2014-07-15 出版日期:2014-12-15 发布日期:2014-12-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 41174109 and 61104148), the National Science and Technology Major Project of China (Grant No. 2011ZX05020-006), and the Zhejiang Key Discipline of Instrument Science and Technology, China (Grant No. JL130106).

Multi-scale complexity entropy causality plane: An intrinsic measure for indicating two-phase flow structures

Dou Fu-Xiang (窦富祥)a, Jin Ning-De (金宁德)a, Fan Chun-Ling (樊春玲)a, Gao Zhong-Ke (高忠科)a, Sun Bin (孙斌)b   

  1. a School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China;
    b College of Metrological and Engineering, China Jiliang University, Hangzhou 310018, China
  • Received:2014-05-07 Revised:2014-07-15 Online:2014-12-15 Published:2014-12-15
  • Contact: Jin Ning-De E-mail:ndjin@tju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 41174109 and 61104148), the National Science and Technology Major Project of China (Grant No. 2011ZX05020-006), and the Zhejiang Key Discipline of Instrument Science and Technology, China (Grant No. JL130106).

摘要: We extend the complexity entropy causality plane (CECP) to propose a multi-scale complexity entropy causality plane (MS-CECP) and further use the proposed method to discriminate the deterministic characteristics of different oil-in-water flows. We first take several typical time series for example to investigate the characteristic of the MS-CECP and find that the MS-CECP not only describes the continuous loss of dynamical structure with the increase of scale, but also reflects the determinacy of the system. Then we calculate the MS-CECP for the conductance fluctuating signals measured from oil–water two-phase flow loop test facility. The results indicate that the MS-CECP could be an intrinsic measure for indicating oil-in-water two-phase flow structures.

关键词: oil–, water two-phase flow, fluid dynamics, complexity entropy, multi-scale

Abstract: We extend the complexity entropy causality plane (CECP) to propose a multi-scale complexity entropy causality plane (MS-CECP) and further use the proposed method to discriminate the deterministic characteristics of different oil-in-water flows. We first take several typical time series for example to investigate the characteristic of the MS-CECP and find that the MS-CECP not only describes the continuous loss of dynamical structure with the increase of scale, but also reflects the determinacy of the system. Then we calculate the MS-CECP for the conductance fluctuating signals measured from oil–water two-phase flow loop test facility. The results indicate that the MS-CECP could be an intrinsic measure for indicating oil-in-water two-phase flow structures.

Key words: oil–water two-phase flow, fluid dynamics, complexity entropy, multi-scale

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
05.45.Tp (Time series analysis) 47.52.+j (Chaos in fluid dynamics) 47.11.St (Multi-scale methods)