Studies on flow characteristics of coal–oil–water slurry system

2006 ◽  
Vol 79 (4) ◽  
pp. 217-224 ◽  
Author(s):  
Subrata Kumar Majumder ◽  
Kamal Chandna ◽  
Dhiren Sankar De ◽  
Gautam Kundu
Author(s):  
Hooman Foroughi ◽  
Masahiro Kawaji

The flow characteristics of a highly viscous oil and water mixture in a circular microchannel have been investigated. Water and silicone oil with a viscosity of 863 mPa.s were injected into a fused silica microchannel with a diameter of 250 μm. Before each experiment, the microchannel was initially saturated with either oil or water. In the initially oil-saturated case, different liquid-liquid flow patterns were observed and classified over a wide range of oil and water flow rates. As a special case, the flow of water at zero oil flow rate in a microchannel initially filled with silicone oil was also studied. When the microchannel was initially saturated with water, the oil formed a jet in water at the injection point but developed an instability at the oil-water interface downstream and eventually broke up into droplets.


2013 ◽  
Vol 353-356 ◽  
pp. 3190-3193
Author(s):  
Zong Rui Hao ◽  
Juan Xu ◽  
Hai Yan Bie ◽  
Zhong Hai Zhou

To study the flow pattern in the process of oil-water stirring in three paddle stirring tank, RNG k-ε turbulent model and VOF model are adopted to simulate the flow field at different time in the stirred tank with the baffle. The results showed that, in the stirring process, inverted cone manifold was formed in the center of the stirring shaft. The stratified area was formed in the baffle and gradually transported to the bottom of the tank. The two circular flows were formed among three groups of blades. And the axially acting of the fluid was strong, which made homogeneous stirring in the stirred tank. At the same time the radial flow of the cross-section inside the tank increased because of the baffle.


2020 ◽  
Vol 159 ◽  
pp. 215-224 ◽  
Author(s):  
Sen Li ◽  
Ruoning Li ◽  
Franck C.G.A. Nicolleau ◽  
Zunce Wang ◽  
Yuejuan Yan ◽  
...  

2012 ◽  
Vol 84 ◽  
pp. 333-344 ◽  
Author(s):  
Bao-Zi Peng ◽  
Jun Chen ◽  
Chang-Yu Sun ◽  
Abhijit Dandekar ◽  
Shao-Hui Guo ◽  
...  

2016 ◽  
Vol 19 (4) ◽  
pp. 48-53 ◽  
Author(s):  
Byeong Jun Kim ◽  
Sung Yoon Kim ◽  
Chun Su Roh ◽  
Young Ho Lee

2008 ◽  
Vol 319 (1) ◽  
pp. 109-114 ◽  
Author(s):  
J.G. Ahn ◽  
T.H. Hoang ◽  
D.J. Kim ◽  
M.S. Kim ◽  
C.O. Kim ◽  
...  

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