蔡子琦, 包雨云, 高正明. Hydrodynamic Behavior of a Single Bubble Rising in Viscous Liquids[J]. 中国化学工程学报(英文版), 2010,18(6):923-930.
CAI Ziqi, BAO Yuyun, GAO Zhengming. Hydrodynamic Behavior of a Single Bubble Rising in Viscous Liquids[J]. , 2010, 18(6): 923-930.
蔡子琦, 包雨云, 高正明. Hydrodynamic Behavior of a Single Bubble Rising in Viscous Liquids[J]. 中国化学工程学报(英文版), 2010,18(6):923-930.DOI: 10.1016/S1004-9541(09)60149-X.
CAI Ziqi, BAO Yuyun, GAO Zhengming. Hydrodynamic Behavior of a Single Bubble Rising in Viscous Liquids[J]. , 2010, 18(6): 923-930.DOI: 10.1016/S1004-9541(09)60149-X.
Hydrodynamic Behavior of a Single Bubble Rising in Viscous Liquids
The rising behavior of single bubbles has been investigated in six systems with different viscosity and Morton number(
Mo
) from 3.21×10
-11
to 163. Bubbles with maximum equivalent diameter of up to 16 mm were investigated. The bubble Reynolds number(
Re
) ranged from 0.02 to 1200 covering 3 regimes in which two functions are obtained relating the drag coefficient
C
D
with
Re
and
Mo
. It has been found that in the high Reynolds number regime the drag coefficient increases until the Reynolds number of about 1200. The classic expression of Jamialahmadi(1994) is improved and extended to high viscosity liquids. A new relationship for the aspect ratio of deformed bubbles in terms of
Re
the E鰐v鰏 number and
Mo
applicable to a wide range of system properties
especially in high viscosity liquids
is also suggested.
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