Free Rotational Diffusion of Rigid Particles with Arbitrary Surface Topography: A Brownian Dynamics Study Using Eulerian Angles

2008 ◽  
Vol 17 (2–3) ◽  
pp. 121-129 ◽  
Author(s):  
Tom Richard Evensen ◽  
Stine Nalum Naess ◽  
Arnljot Elgsaeter
Keyword(s):  
Surface Topography ◽  
Brownian Dynamics ◽  
Rotational Diffusion ◽  
Rigid Particles

scholarly journals Brownian dynamics of fully confined suspensions of rigid particles without Green’s functions

2019 ◽  
Vol 150 (16) ◽  
pp. 164116 ◽  
Author(s):  
Brennan Sprinkle ◽  
Aleksandar Donev ◽  
Amneet Pal Singh Bhalla ◽  
Neelesh Patankar
Keyword(s):  
Brownian Dynamics ◽  
Green's Functions ◽  
Green’S Functions ◽  
Rigid Particles ◽  
Confined Suspensions

scholarly journals Brownian dynamics of rigid particles in an incompressible fluctuating fluid by a meshfree method

2016 ◽  
Vol 127 ◽  
pp. 174-181 ◽  
Author(s):  
Anamika Pandey ◽  
Steffen Hardt ◽  
Axel Klar ◽  
Sudarshan Tiwari
Keyword(s):  
Brownian Dynamics ◽  
Meshfree Method ◽  
Rigid Particles

scholarly journals Predictions for the northern coast of the shear rheology map: XXLAOS

2016 ◽  
Vol 798 ◽  
pp. 1-4 ◽  
Author(s):  
Randy H. Ewoldt
Keyword(s):  
Model Selection ◽  
Constitutive Model ◽  
Complex Fluids ◽  
Rotational Diffusion ◽  
Northern Coast ◽  
Large Amplitude Oscillatory Shear ◽  
New Paradigm ◽  
Rheological Characterization ◽  
Rigid Particles ◽  
Brownian Rotational Diffusion

A new paradigm of rheological characterization, oscillatory simple shear with infinite forcing amplitudes, is introduced by Khair (J. Fluid Mech., vol. 791, 2016, R5). This pushes the technique of large-amplitude oscillatory shear (LAOS) to have two extremely large amplitudes (both strain-rate and strain), which we might call XXLAOS. Model-specific analytical predictions are derived for a suspension of nearly spherical rigid particles subject to Brownian rotational diffusion. The work illuminates a new regime of rheological characterization that may serve as a distinct proving ground for constitutive model selection and for probing the flow physics of rheologically complex fluids.

scholarly journals Large scale Brownian dynamics of confined suspensions of rigid particles

2017 ◽  
Vol 147 (24) ◽  
pp. 244103 ◽  
Author(s):  
Brennan Sprinkle ◽  
Florencio Balboa Usabiaga ◽  
Neelesh A. Patankar ◽  
Aleksandar Donev
Keyword(s):  
Brownian Dynamics ◽  
Large Scale ◽  
Rigid Particles ◽  
Confined Suspensions

scholarly journals Dynamics of Complexation of a Charged Dendrimer by Linear Polyelectrolyte: Computer Modelling

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Sergey Lyulin ◽  
Anatolij Darinskii ◽  
Alexey Lyulin
Keyword(s):  
Brownian Dynamics ◽  
Computer Modelling ◽  
Rotational Diffusion ◽  
Linear Chain ◽  
Relaxation Times ◽  
Linear Polymer ◽  
Dynamics Simulations ◽  
The Individual ◽  
Brownian Dynamics Simulations ◽  
Oppositely Charged

AbstractBrownian-dynamics simulations have been performed for complexes formed by a charged dendrimer and a long oppositely charged linear polyelectrolyte when overcharging phenomenon is always observed. After complex formation the orientational mobility of the individual dendrimer bonds, the fluctuations of the dendrimer size, and the dendrimer rotational diffusion have been simulated. Corresponding relaxation times do not depend on the linear-chain length in a complex and are close to those for a single neutral dendrimer. At the same time fluctuations of the size of a complex are completely defined by the corresponding fluctuations of a linear polyelectrolyte size. Adsorbed polyelectrolyte practically does not feel the rotation of a dendrimer; simulated complexes may be considered as nuts with light core (dendrimer) and heavy shell (adsorbed linear polymer); the electrostatic contacts between dendrimer and oppositely charged linear polymer are easily broken due to the very fast dendrimer-size fluctuations.

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