Bifurcated bubbling Yingnan Shen, Liang Hu*, Yanshen Fang, Xin Fu 0 o 90 o 180 o 270 o 360 o We found bifurcated bubbling which comes from Taylor flows injecting into liquid with: Various bifurcation angles Various bubble radius R Bubble chains rotation Even unequal R Even 3 chains R≈0.4mm State Key Laboratory of Fluid Power & Mechatronic Systems, Zhejiang University, China 3 chains R≈0.2mm Must bubbling behave as a single chain of vertical rising bubbles? 3mm R≈0.8mm 2mm Unequal R 0.3/0.2mm Various bifurcation angles R≈1.2mm Various bubble radius R Bubble chains rotation Taylor flows Physical reason: bubble interaction 0 o 5 o 20 o 35 o Symmetry Asymmetry The New Bubbling One nozzle, More chains, More orientations. 1100 o /s
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BifurcatedbubblingYingnan Shen, Liang Hu*, Yanshen Fang, Xin Fu
0o 90o 180o 270o 360o
We found bifurcated bubbling which comesfrom Taylor flows injecting into liquid with: Various bifurcation angles Various bubble radius R Bubble chains rotation Even unequal R Even 3 chains
R≈0.4mm
State Key Laboratory of Fluid Power & Mechatronic Systems, Zhejiang University, China
3 chainsR≈0.2mm
Mustbubblingbehaveasasinglechainof
verticalrisingbubbles?
3mm
R≈0.8mm 2mm
Unequal R0.3/0.2mm
Various bifurcation angles
R≈1.2mm
Various bubble radius R
Bubble chains rotation
Taylor flows
Physical reason: bubble interaction
0o 5o 20o 35o
Symmetry
Asymmetry
TheNewBubblingOnenozzle,Morechains,
Moreorientations.
1100o/s
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