scholarly journals Numerical simulation of breakup of a viscous drop in simple shear flow through a volume-of-fluid method

2000 ◽  
Vol 12 (2) ◽  
pp. 269-282 ◽  
Author(s):  
Jie Li ◽  
Yuriko Y. Renardy ◽  
Michael Renardy
Keyword(s):  
Numerical Simulation ◽  
Shear Flow ◽  
Simple Shear ◽  
Volume Of Fluid ◽  
Simple Shear Flow ◽  
Volume Of Fluid Method ◽  
Viscous Drop ◽  
Flow Through

Direct Numerical Simulation of Drops in Three Dimensional Viscoelastic Simple Shear Flows

2001 ◽  
Author(s):  
Shriram B. Pillapakkam ◽  
Pushpendra Singh
Keyword(s):  
Numerical Simulation ◽  
Shear Flow ◽  
Direct Numerical Simulation ◽  
Viscoelastic Fluid ◽  
Simple Shear ◽  
Polymer Concentration ◽  
Three Dimensional ◽  
Simple Shear Flow ◽  
Splitting Technique

Abstract A three dimensional finite element scheme for Direct Numerical Simulation (DNS) of viscoelastic two phase flows is implemented. The scheme uses the Level Set Method to track the interface and the Marchuk-Yanenko operator splitting technique to decouple the difficulties associated with the governing equations. Using this numerical scheme, the shape of Newtonian drops in a simple shear flow of viscoelastic fluid and vice versa are analyzed as a function of Capillary number, Deborah number and polymer concentration. The viscoelastic fluid is modeled via the Oldroyd-B model. The role of viscoelastic stresses in deformation of a drop subjected to simple shear flow and its effect on the steady state shape is analyzed. Our results compare favorably with existing experimental data and also help in understanding the role of viscoelastic stresses in drop deformation.

Numerical simulation of capsule deformation in simple shear flow

2010 ◽  
Vol 39 (2) ◽  
pp. 242-250 ◽  
Author(s):  
Y. Sui ◽  
X.B. Chen ◽  
Y.T. Chew ◽  
P. Roy ◽  
H.T. Low
Keyword(s):  
Numerical Simulation ◽  
Shear Flow ◽  
Simple Shear ◽  
Simple Shear Flow ◽  
Capsule Deformation
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