Four-way coupled Eulerian-Lagrangian Direct Numerical Simulations in a vertical laminar channel flow

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• 作者：Jonathan Schillings^a ; Olivier Doche^b ; ^{olivier.doche@phelma.grenoble-inp.fr} ; Mauricio Tano Retamales^c ; Fré ; dé ; ric Bauer^b ; Jonathan Deseure^a ; Sedat Tardu^d
• 刊名：International Journal of Multiphase Flow
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：89
• 期：Complete
• 页码：92-107
• 全文大小：2666 K
• 卷排序：89

文摘

Bubbles dynamics and their interactions with the walls and the liquid are fully resolved through a four-way coupling strategy. Simulations involve a very large amount of bubbles. DNS strategy gives access to a fine evaluation of the flow in the wall vicinity that is inaccessible in mixture models. The mesh sensitivity has been investigated for cell sizes ranging between 0.7 and 12 bubble radii. No strong differences have been observed between the purely elastic and the non-elastic rebound cases.