W. J. Briels
33 records found
1
Authored
We provide a review of our recent work on the development of a multi-scale simulation methodology to calculate the rheology and flow of wormlike micelles. There is a great need for understanding the link between the detailed chemistry of surfactants, forming wormlike micelles, ...
We use molecular dynamics simulations to study phase separation of a 50:50 (by volume) fluid mixture in a confined and curved (Taylor-Couette) geometry, consisting of two concentric cylinders. The inner cylinder may be rotated to achieve a shear flow. In nonsheared systems we ...
Recently there has been a great deal of attention, from researchers both in academia and in industry, focused on the rheological properties of solutions of viscoelastic wormlike micelles formed by surfactants. It is particularly vital to understand the properties of these solu ...
Flow of entangled wormlike micellar fluids
Mesoscopic simulations, rheology and μ-PIV experiments
A coarse-grained simulation model was used to investigate the transient and steady-state nonlinear flow properties of unentangled and moderately entangled polyethylene melts. It was found that the model's predictions agree very well with various rheological experiments for she ...
Zero-shear stress relaxation and long time dynamics of a linear polyethylene melt
A test of Rouse theory
Molecular dynamics (MD) simulations of a polyethylene melt were performed to investigate the validity of the Rouse model predictions for a comprehensive set of correlation functions. It was found that the chains behave like Rouse theory predicts, but only on length scales larg ...
Uncrossability constraints in mesoscopic polymer melt simulations
Non-rouse behavior of C120H242
A soft-sphere discrete particle model was used to simulate mixing behavior of solid substrate particles in a slow rotating drum for solid-state fermentation. In this approach, forces acting on and subsequent motion of individual particles can be predicted. The (2D) simulations ...