颗粒系统竞争式聚集行为的计算机模拟  

Computer simulation of competitive clustering behavior of granule system

作　　者：马崇武[1] 慕青松[2] 齐艳丽[2] 

机构地区：[1]东莞理工学院机电建筑工程系,广东东莞523808 [2]兰州大学土木工程与力学学院,甘肃兰州730000

出　　处：《兰州理工大学学报》2007年第6期147-151,共5页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金青年基金(10402012);东莞市科研发展专项基金(2005D046)

摘　　要：实现两种颗粒混合物的竞争式聚集行为的二维仿真模拟,编程时考虑颗粒与颗粒、颗粒与侧壁、颗粒与中央挡板以及颗粒与底板的碰撞.模拟结果表明:振动强度较小时,颗粒最终聚集到起初小颗粒多而大颗粒少的右室;振动强度较大时,颗粒最终聚集到起初大颗粒多而小颗粒少的左室;振动强度很大时,颗粒呈均匀分布状态,模拟与实验定性符合良好.Two-dimensional simulation competitive clustering behavior of the mixture composed of two sorts of granules was implemented. The collisions among particles, between particles and side walls, mid wall, and bottom were taken into consideration. It was shown by the simulation results that, for mild sha- king strength, the particles clustered in the right compartment, for moderate shaking strength, the particles clustered in the left compartment, and for sufficiently strong shaking, a uniform distribution was found, being qualitatively accordant with the experimental results.

关 键 词：颗粒系统 竞争式聚集行为 计算机模拟 

分 类 号：O347.7[理学—固体力学] O369[理学—力学]