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WU Zongying , YANG Ning
Online:
Published:
吴宗应,杨宁
Abstract:
A transient two-phase and three-dimensional computational fluid dynamics (CFD) simulation within the Eulerian framework has been carried out to investigate the influence of drag models on the radial gas hold-up profile of a bubble column. The effect of the sparger modeling is investigated as well. It can be concluded that:(1)the approximate modeling method for the sparger in this work is capable of reasonably predicting the radial gas holdup profile; (2)the CFD simulation with the Tomiyama’s drag model differs little from the Ishii-Zuber drag model at the low superficial velocity, while at the high gas velocity, the former leads to an over-prediction of the gas hold-up profile; (3)the correction factor of drag coefficient has a larger influence on the radial gas holdup profiles for high superficial gas velocity than low velocity.
WU Zongying , YANG Ning. Effect of drag models on simulation of gas hold-up in bubble columns[J]. .
吴宗应,杨宁. 曳力模型对模拟鼓泡塔气含率的影响 [J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2010/V61/I11/2817