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- Fathollah Varnik, LydÃ©ric Bocquet, J-L Barrat, Ludovic Berthier
- Physical review letters
- 2003

Using molecular dynamics simulations, we show that a simple model of a glassy material exhibits the shear localization phenomenon observed in many complex fluids. At low shear rates, the systemâ€¦ (More)

Large-scale molecular-dynamics simulations are performed to study the steady-state yielding dynamics of a well-established simple glass. In contrast to the supercooled state, where the shear stress,â€¦ (More)

Polymeric thin films of various thicknesses, confined between two repulsive walls, have been studied by molecular dynamics simulations. Using the anisotropy of the perpendicular, P N (z), andâ€¦ (More)

- Timm KrÃ¼ger, Fathollah Varnik, Dierk Raabe
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

A thorough study of shear stress within the lattice Boltzmann method is provided. Via standard multiscale Chapman-Enskog expansion we investigate the dependence of the error in shear stress on gridâ€¦ (More)

The stationary, shear rate dependent flow curves of yielding glasses are discussed within a mode coupling theory approach. Asymptotic formulae for the shear stress at the transition point areâ€¦ (More)

- Markus Wolfram Gross, Timm KrÃ¼ger, Fathollah Varnik
- Soft matter
- 2014

We study the shearing rheology of dense suspensions of elastic capsules, taking aggregation-free red blood cells as a physiologically relevant example. Particles are non-Brownian and interact onlyâ€¦ (More)

- Markus Wolfram Gross, R. Adhikari, Michael E Cates, Fathollah Varnik
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2010

We introduce thermal fluctuations in the lattice Boltzmann method for nonideal fluids. A fluctuation-dissipation theorem is derived within the Langevin framework and applied to a specific latticeâ€¦ (More)

- S. G. Ayodele, Fathollah Varnik, Dierk Raabe
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2011

Pattern formation in reaction-diffusion systems is of great importance in surface micropatterning [Grzybowski et al., Soft Matter 1, 114 (2005)], self-organization of cellular micro-organisms [Schulzâ€¦ (More)

- Timm KrÃ¼ger, Markus Gross, Dierk Raabe, Fathollah Varnik
- Soft matter
- 2013

Via computer simulations, we provide evidence that the shear rate induced red blood cell tumbling-to-tank-treading transition also occurs at quite high volume fractions, where collective effects areâ€¦ (More)

- Fathollah Varnik, LydÃ©ric Bocquet, J-L Barrat
- The Journal of chemical physics
- 2004

The stress-strain relations and the yield behavior of a model glass (a 80:20 binary Lennard-Jones mixture) is studied by means of molecular dynamics simulations. In a previous paper it was shownâ€¦ (More)