Objective and intelligent identification of gas-liquid two phase flow pattern have important meaning for other parameters measurement. High-speed camera is used as detecting sensor to capture two-phase flow patterns image in adiabatic vertical section whose inner diameter is 50 mm
extract five eigenvectors of mean and standard deviation of gray image
and area
width
height of the max object of binary image; use hierarchical fuzzy reasoning method to identify bubble flow
slug flow
plug flow and churn flow patterns. For 131 experimental images
the average identification accuracy of this method is 93. 13 %.
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