Measurement and evaluation of two-phase flow parameters

The fuzzy set theory and the flow-imaging technique were applied to measure the flow pattern and void fraction of two-phase flow. The flow pattern was identified online by using 'fuzzy identification', and an instrument system based on the flow-imaging technique was developed for online flow pattern measurement as well. The void fraction was evaluated online by 'fuzzy multifactorial evaluation'. The void fraction was also measured online by an instrument system based on the flow-imaging technique. The experimental results show that the developed methods are satisfactory.<
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