Brownian Dynamics Modeling of Flow-Induced Birefringence and Chain Scission in Dilute Polymer Solutions in a Planar Cross-Slot Flow

2005 ◽  
Vol 38 (4) ◽  
pp. 1456-1468 ◽  
Author(s):  
Chih-Chen Hsieh ◽  
Seung Joon Park ◽  
Ronald G. Larson
Keyword(s):  
Brownian Dynamics ◽  
Polymer Solutions ◽  
Chain Scission ◽  
Dynamics Modeling ◽  
Dilute Polymer Solutions

scholarly journals A lattice Boltzmann method for dilute polymer solutions

2011 ◽  
Vol 369 (1944) ◽  
pp. 2301-2310 ◽  
Author(s):  
Shiwani Singh ◽  
Ganesh Subramanian ◽  
Santosh Ansumali
Keyword(s):  
Lattice Boltzmann ◽  
Brownian Dynamics ◽  
Polymer Solutions ◽  
Local Equilibrium ◽  
Planck Equation ◽  
Simulation Techniques ◽  
Dilute Polymer Solutions ◽  
Distribution Phase ◽  
Space Dynamics ◽  
Dynamics Simulations

We present a lattice Boltzmann approach for the simulation of non-Newtonian fluids. The method is illustrated for the specific case of dilute polymer solutions. With the appropriate local equilibrium distribution, phase-space dynamics on a lattice, driven by a Bhatnagar–Gross–Krook (BGK) relaxation term, leads to a solution of the Fokker–Planck equation governing the probability density of polymer configurations. Results for the bulk rheological characteristics for steady and start-up shear flow are presented, and compare favourably with those obtained using Brownian dynamics simulations. The new method is less expensive than stochastic simulation techniques, particularly in the range of small to moderate Weissenberg numbers (W i ).

On the mechanism of drag reduction in dilute polymer solutions

1996 ◽  
Vol 55 (4) ◽  
pp. 289-295 ◽  
Author(s):  
K. Hoyer ◽  
A. Gyr ◽  
A. Tsinober
Keyword(s):  
Drag Reduction ◽  
Polymer Solutions ◽  
Dilute Polymer Solutions
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