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中南大学学报(英文版)

Journal of Central South University

Vol. 23    No. 4    April 2016

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Numerical simulation of single bubble rising in shear-thinning fluids by level set method
LI Shao-bai(李少白), YAN Zheng(烟征), LI Run-dong(李润东), WANG Lei(王雷), LUAN Jing-de(栾敬德)

Liaoning Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China

Abstract:the behavior of single bubble rising in quiescent shear-thinning fluids was investigated numerically by level set method. A number of bubbles in a large range of Reynolds number and Eotvos number were investigated including spherical, oblate and spherical. The bubble shape and drag coefficient were compared with experimental results. It is observed that the simulated results show good conformity to experimental results over a wide range of Reynolds number. In addition, the detailed flow field based on the reference coordinate system moving with the bubble is obtained, and the relationship among flow field, bubble shape and velocity is discussed.

 

Key words: single bubble; shear thinning fluid; numerical simulation; level set method

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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