Bubble-induced modifications of a vertical mixing layer

被引：4
|
作者：
Climent, E
Magnaudet, J
机构：
[1] ULP, CNRS, UMR 7507, Inst Mecan Fluides Strasbourg, F-67000 Strasbourg, France
[2] UPS, INPT, CNRS, UMR 5502,Inst Mecan Fluides Toulouse, F-31400 Toulouse, France
来源：
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE ASTRONOMIE | 1998年 / 326卷 / 10期
关键词：
dispersed flow; large eddy simulation; mixing layer; hydrodynamic forces; two-way coupling;
D O I：
10.1016/S1251-8069(98)89006-4
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We analyse the role of coherent structures present in a vertical mixing layer on the motion of bubbles of various sizes. Then, using the formalism developed in a preview work, we study by means of numerical simulation the modifications induced by bubbles on a single vortex and on a plane mixing layer It appears that when bubbles are small enough to be trapped within the vortices they are able to significantly modify the flow field and especially its transverse expansion rate. Simultaneously, a significant reduction of the lateral dispersion of bubbles is observed (C) Academie des Sciences/Elsevier, Paris.
引用
收藏
页码：627 / 634
页数：8
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