Multiphysics Modelling Environment for Continuum And Discrete Dynamics
Multiphysics Modelling Environment for Continuum And Discrete Dynamics
复制标题
连续和离散动力学的多物理场建模环境
DOI：
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发表时间：
2004
期刊：
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通讯作者：
A. Smirnov
中科院分区：
文献类型：
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作者：
A. Smirnov
摘要 描述了用于模拟复杂 3D 几何中的离散和连续动力学的模型开发环境。该环境基于用于操作几何图元的 3D 库、面向对象的多域建模范式、非结构化网格上的连续解算器、离散粒子解算器以及工具辅助网格生成技术。数值方法基于连续介质力学的控制体积和有限元组合方法以及拉格朗日粒子动力学方法。考虑了复杂连续机械系统的几个原型示例，例如分叉通道中的流动，包括粒子传输和沉积、与柔性膜和刚性结构的流动相互作用，以及由粒子和键系统表示的分子动力学简化模型。
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.