Off-lattice Brownian dynamics simulation of wormlike micelles: The dependence of the mean contour length on concentration

1999 ◽  
Vol 111 (21) ◽  
pp. 9859-9863 ◽  
Author(s):  
Yannick Rouault
Keyword(s):  
Brownian Dynamics ◽  
Dynamics Simulation ◽  
Wormlike Micelles ◽  
Contour Length ◽  
Brownian Dynamics Simulation ◽  
The Mean

Brownian Dynamics Simulation in a Turbulent Channel Flow

2003 ◽  
Author(s):  
Vincent E. Terrapon ◽  
Yves Dubief ◽  
Parviz Moin ◽  
Eric S. G. Shaqfeh
Keyword(s):  
Channel Flow ◽  
Brownian Dynamics ◽  
Turbulent Channel Flow ◽  
Dynamics Simulation ◽  
Wall Region ◽  
Streamwise Direction ◽  
Brownian Dynamics Simulation ◽  
Qualitative Behaviour ◽  
The Mean ◽  
Mean Stresses

The dynamics of different bead-spring models is investigated in a turbulent channel flow. In particular, the FENE, the FENE-P and the FENE multichain models are compared. In the case of the FENE-P model, both the Brownian Dynamics and the constitutive equations are used. It is shown that the different models produce qualitatively similar results for the mean extension and the mean stresses. This qualitative behaviour is also reproduced for different extensibility parameters. It is also found that the action of polymers is confined in the near wall region where the polymers are mainly oriented in the streamwise direction.

Brownian Dynamics Simulations of Polymer Behavior in Nanofluidic and Microfluidic Systems

2007 ◽  
Author(s):  
Satish Kumar
Keyword(s):  
Brownian Dynamics ◽  
Simulation Method ◽  
Transport Processes ◽  
Design Tool ◽  
Dynamics Simulation ◽  
Coarse Grained ◽  
Contour Length ◽  
Brownian Dynamics Simulation ◽  
Polyelectrolyte Adsorption ◽  
Dynamics Simulations

Brownian dynamics (BD) is a stochastic simulation method that can quantitatively describe the non-equilibrium behavior of long polymers (∼1 micron contour length) over long time scales (∼1 s). With the increasing use of nanofluidic and microfluidic devices for the handling of biopolymers such as DNA, BD has the potential to be a powerful design tool for the separation and transport processes carried out in these devices. As a coarse-grained simulation method, BD also serves as a natural bridge between atomistic and continuum modeling. In this talk, an introduction to the Brownian dynamics simulation method will be given along with simulation results for some applications of current interest. The introduction will review basic molecular models for polymers (bead-rod, bead-spring) and the stochastic differential equations used to describe their dynamics. The applications will focus on polyelectrolyte adsorption and electrophoresis.

Brownian dynamics simulation of diffusion‐influenced bimolecular reactions

1984 ◽  
Vol 80 (4) ◽  
pp. 1517-1524 ◽  
Author(s):  
Scott H. Northrup ◽  
Stuart A. Allison ◽  
J. Andrew McCammon
Keyword(s):  
Brownian Dynamics ◽  
Dynamics Simulation ◽  
Brownian Dynamics Simulation ◽  
Bimolecular Reactions
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