Multiphysics Modelling Environment for Continuum And Discrete Dynamics

Abstract

A model-development environment for simulation of discrete and continuum dynamics in complex 3D geometries is described. This environment is based on 3D libraries for manipulation of geometrical primitives, object-oriented multidomain modelling paradigm, continuum solvers on unstructured meshes, discrete particle solvers, and a tool-assisted grid generation technique. The numerical approach is based on combined control-volume and finite-element methods of continuum mechanics and Lagrangian particle dynamics method. Several prototype example cases of complex continuum mechanical systems are considered, such as flow in bifurcating channels, including particle transport and deposition, flow interactions with flexible membranes and rigid structures, and a simplified model of molecular dynamics represented by a system of particles and bonds.

Key Words:

• Multiparadigm simulation
• physically based modelling
• continuous and discrete methodology
• 3-dimensional modelling

Additional information

Notes on contributors

A.V. Smirnov

Andrei Smirnov received his M.Sc. degree in physics from Moscow University, Russia, in 1982 and his Ph.D. degree in technical sciences from Chalmers University, Sweden, in 1998. He is Assistant Professor at the Department of Mechanical and Aerospace Engineering of the West Virginia University. He is involved in a number of projects in the area of turbulence and combustion modelling, particle transport simulations, general multiphysics modelling and CFD. He is teaching courses in thermodynamics and fluid dynamics.