Gas-liquid phase holdup measurement and verification method based on modal transfer complex network

Abstract

A gas-liquid phase holdup measurement and verification method based on modal migration complex network: constructing modal migration complex network; calculating gas-liquid two-phase flow parameter measurement information; drawing directional weighted aggregation coefficient, local betweenness and average shortest The measurement chart of the linear relationship between path and phase holdup realizes the measurement of phase holdup of gas-liquid two-phase flow; according to the drawn measurement chart, analyze the directional weighted aggregation coefficient, local betweenness and average shortest path and flow pattern evolution dynamics relationship, revealing the dynamic mechanism of gas-liquid two-phase flow flow regime evolution. The verification method is to use four-sector distributed conductance sensors for verification. The present invention proposes a multivariate time series modal migration complex network method for information fusion of two-phase flow distributed conductance sensor measurement signals; the multivariate time series modal migration complex network information fusion method can effectively identify different gas-liquid two-phase flows type; the verification of multivariate time series modal migration complex network information fusion method can obtain good phase inclusion rate measurement results.

Description

technical field [0001] The invention relates to a gas-liquid two-phase flow measurement information fusion method. In particular, it relates to a gas-liquid phase holdup measurement and verification method based on a complex network of modal migration for the measurement signal of a gas-liquid two-phase flow distributed conductivity sensor. Background technique [0002] The research of gas-liquid two-phase flow is developed along with the needs of industrial technology. Especially in the late 1940s, due to the rise and development of power engineering, chemical engineering, petrochemical engineering, atomic energy engineering, aerospace engineering and environmental protection engineering, the research on gas-liquid two-phase flow has been paid more and more attention, prompting it to form a complete discipline Applied basic disciplines. Flow pattern is an important factor affecting the accurate measurement of flow parameters. The flow pattern of gas-liquid two-phase flow ...

AI Technical Summary

Problems solved by technology

The research on univariate time series complex networks has made great progress, but the research theory of multivariate time series complex networks is still quite limited. Nodes build a network, which has great limitations in the application of non-EEG signal analysis fields

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