混沌递归分析在油水两相流流型识别中的应用

采用由Lorenz方程生成的时间序列验证了递归定量分析的有效性及敏感性，并将该分析方法应用于油水两相流流型识别.研究结果表明：对油水两相流过渡流型，在递归图上表现为分散点或线条纹理两种纹理结构特征;而对同一种水包油流型，仅表现为线条纹理结构特征.表明混沌递归图纹理结构特征对油水两相流流型变化敏感，混沌递归定量分析是一种流型识别的有效辅助诊断工具.

Application of chaotic recurrence analysis for identification of oil/water two-phase flow patterns

The method of using the time series data generated by the Lorenz equation to verify the valid and sensitivity of recurrence quantification analysis was presented, and this method was used to ident ty fy oil/water two-phase flow patterns. The research indicated both dispersed points texture and line type texture appeared on recurrence plot for the transitional oil/water two phase flow pattern; however, only line type texture appeared on recurrence plot for the oil-in-water flow pattern. This phenomenon showed that the texture on recurrence plot was sensitive to the change of oil/water two-phase flow pattern, and the recurrence quantification analysis was a valid supplementary diagnosis tool for flow pattern identification.