Following on from last October's successful CCP5 meeting on the Lattice Boltzmann method, I am organising a one-day workshop in the Spring on 'mesoscale' liquid simulation techniques in general. This time we will be focusing more on the so-called 'off-lattice' methods such as Dissipative Particle Dynamics (DPD)-Smooth Particle Hydrodramics (SPH) and various coarse-graining techniques that can be used to span the gap between molecular simulation and Computational Fluid Dynamics (CFD). Hybrid off-lattice/on-lattice methods are also being developed which would fit nicely in the programme as well. The focus will be on the liquid state, and particularly complex multicomponent/multiphase liquids such as polymers, surfactants and colloid systems and their mixtures.
Pep Español
Department of Physics
Facultad de Ciencias (U.N.E.D.)
Madrid, Spain.
whose significant contributions in the area of DPD/SPH will be known to many of you. His talk is entitled:
"Fluid Particle Models for the Simulation of Complex Fluids"
Abstract:
Dissipative Particle Dynamics (DPD) is a very simple and versatile simulation technique that is being used for the study of complex fluids like polymer and colloidal systems, phase separating mixtures, or amphiphilic systems. Despite its successful applications, the technique has several drawbacks, like being isothermal, not having a clear definite scale, or not being able to reproduce a targeted thermodynamic behaviour. In this talk, I will show how these problems can be solved by resorting to the textbook concept of fluid particles and by formulating thermodynamically consistent discrete models for these fluid particles. The definition of the volume through a weight function leads to the well-known technique of Smoothed Particle Hydrodynamics which was devised originally for the simulation of astrophysical problems. The definition of the volume through the Voronoi tessellation leads to another promising model from the computational point of view. In addition, I will show how one can construct new models for the simulation of complex fluids by generalizing these fluid particle models through the inclusion of additional microstructural variables.
I will reply by email confirming your registration (or not).
For those coming from a distance, overnight accommodation on the University of Surrey campus is available on the night of Sunday 18th April.
Best Wishes,
David Heyes
Written 16 January 2004