Related Experiment Video
Updated: Jul 27, 2025

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
Published on: August 26, 2019
Interconnected ordinal pattern complex network for characterizing the spatial coupling behavior of gas-liquid
Meng Du1, Jie Wei1, Meng-Yu Li2
1School of Electrical Engineering and Automation, Tianjin University of Science and Technology, Tianjin 300222, China.
Abstract:
The complex phase interactions of the two-phase flow are a key factor in understanding the flow pattern evolutional mechanisms, yet these complex flow behaviors have not been well understood. In this paper, we employ a series of gas-liquid two-phase flow multivariate fluctuation signals as observations and propose a novel interconnected ordinal pattern network to investigate the spatial coupling behaviors of the gas-liquid two-phase flow patterns. In addition, we use two network indices, which are the global subnetwork mutual information (I) and the global subnetwork clustering coefficient (C), to quantitatively measure the spatial coupling strength of different gas-liquid flow patterns. The gas-liquid two-phase flow pattern evolutionary behaviors are further characterized by calculating the two proposed coupling indices under different flow conditions. The proposed interconnected ordinal pattern network provides a novel tool for a deeper understanding of the evolutional mechanisms of the multi-phase flow system, and it can also be used to investigate the coupling behaviors of other complex systems with multiple observations.
Related Concept Videos
Design Example: Flow of Oil Through Circular Pipes
General Characteristics of Pipe Flow II
The distance to reach a fully developed flow is called the entrance length and depends on the...
Multiple Pipe Systems
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
General Characteristics of Pipe Flow I
The classification of fluid...
Capillarity in Fluid
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Steady, Laminar Flow Between Parallel Plates

