Prediction of gas-liquid flow in an annular gap bubble column using a bi-dispersed Eulerian model
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- 作者：Gaë ; l Raymond Gué ; don ; gaelraymond.guedon@polimi.it ; Giorgio Besagni ; Fabio Inzoli
- 关键词：Bubble column ; CFD simulation ; Bulk liquid turbulence ; Gas holdup curve ; Model validation ; Poly-dispersed homogeneous flow regime
- 刊名：Chemical Engineering Science
- 出版年：2017
- 出版时间：6 April 2017
- 年：2017
- 卷：161
- 期：Complete
- 页码：138-150
- 全文大小：1466 K
- 卷排序：161
文摘
A bi-dispersed model is used to simulate an annular gap bubble column. Sufficiently fine mesh size is required to resolve the transient macro structures. Mono-dispersed models fail to predict experimental data. Inclusion of large bubbles destabilizing effect is relevant for simulation accuracy. Total gas holdup is sensitive to small bubbles volume fraction input data.