The parameters of a two-phase flow at which the occurrence of an intermittent flow pattern in vertical tubes is ruled out
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Flow-pattern charts of a two-phase flow and the boundaries of a quasi-slug (intermittent) flow in a vertical channel are analyzed. Recommendations are proposed for calculating the limiting mass flowrates and steam qualities at which an intermittent flow structure characterized by a high pulsation level of parameters does not occur.
[1] M. Ishii,et al. Flow regime transition criteria for upward two-phase flow in vertical tubes , 1984 .