Identification Method of Gas-liquid Two-phase Flow Pattern Based on Wavelet Analysis
To identify the flow pattern of gas-liquid two-phase flow in pipelines,a flow pattern identification method based on wavelet analysis is proposed in this paper.A gas-liquid two-phase flow pattern detection experimental device consisting of a water tank,water pump,air pump,measurement pipeline,circulation pipeline,and ultrasonic detection system is constructed to obtain ultrasonic detection signals for gas-liquid two-phase flow patterns.Based on wavelet analysis method,the signal is processed and amplitude-frequency images of various flow patterns such as bubbly flow,slug flow,and mixed flow are drawn.By comparing the treatment results of wavelet analysis with Short Time Fourier Transform(STFT),it is proven that wavelet analysis method is more accurate in detail processing than STFT analysis method.
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维普
