粒子方法前处理系统的设计与实现

Design and implementation of a particle methods pre-processing package

粒子方法作为一种直观而常见的模拟方法,已在化工、材料、生物等领域广泛应用。本文针对粒子方法前处理过程的实际需求,利用开源项目BRLCAD的相关功能,设计实现粒子方法的前处理系统。该前处理系统包含几何建模、粒子生成、边界生成等3个模块,提供图形化交互式的几何建模和前处理结果显示功能,以完成复杂边界,多种粒子的复杂算例前处理工作,扩展性良好。最后用实例,说明利用此系统处理工作时,能以简单的步骤,建立较复杂模拟算例的初始数据。

As an intuitionistic and generic approach, particle methods are widely used in many fields, such as chemical engineering, material, and biology. This paper uses some affiliated applications of open source project BRLCAD to accomplish a pre-processing package for particle methods. The high expansibility Pre-Processing Package, which includes three modules： geometry modeling, particle generation and border generation and provides interactive graphical environment for geometry modeling and result display, can implement complicated particle methods cases with complex borders and diversiform particles. The paper provides an example to explain the applications based on the Pre-Processing Package.