The orthogonal decomposition and low dimensional approximation of turbulent structures are investigated, and a pattern identification method based on orthogonal decomposition is suggested.
对湍流结构的正交分解与低阶近似进行了探讨，并在正交分解的基础上建立了湍流相干结构相干模式的识别方法。
Based on Empirical Mode Decomposition (EMD), a new method was presented to monitor flow pattern of oil-gas two-phase flow by using energy evaluation and threshold probability statistical technique.
基于经验模态分解技术，采用能量评估和阈值概率统计手段，提出了一种油气两相流流型状态监测的新方法。
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