Two regime transitions to pseudo-homogeneous and heterogeneous bubble flow for various liquid viscosities
The gas hold-up variation and regime transition were investigated with different liquid
viscosities ranging from 1.0 mPas to 31.5 mPas using a 0.15-m-in-diameter bubble column.
In contrast to common observations, the gas hold-up graph with the superficial gas velocity
could be categorized into three flow regimes: homogeneous, pseudo-homogeneous and
heterogeneous flow regimes. The formation of large bubbles caused a transition from the
homogeneous to the pseudo-homogenous flow regime, in which large bubbles rose …
viscosities ranging from 1.0 mPas to 31.5 mPas using a 0.15-m-in-diameter bubble column.
In contrast to common observations, the gas hold-up graph with the superficial gas velocity
could be categorized into three flow regimes: homogeneous, pseudo-homogeneous and
heterogeneous flow regimes. The formation of large bubbles caused a transition from the
homogeneous to the pseudo-homogenous flow regime, in which large bubbles rose …
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