摘要
利用改进的DLA模型研究由局部区域粒子源释放随机运动粒子形成的凝聚集团的生长.结果显示,该凝聚集团的生长结构与粒子源的方位有关,正对着粒子源方位的生长速度相对较快,同时集团粒子在生长平面的分布与粒子源的相对距离和相对大小有关系,根据粒子源的变化呈现一定的变化规律.该结果有助于从凝聚物的生长结构特征了解粒子源的方位、并对粒子源相对距离和相对大小进行估计.
A modified DLA model is used to simulate particle aggregations formed by random particle released from a local source. It shows that growth structure of aggregations are relative to position of the particle source. Growth velocity toward particle source is faster. It is also shown that particle distribution in growth plane is related to relative distance and relative size of the particle source. A law of particle distribution depends on particle source is shown. It may help in understanding azimuth of particle source from the growth structure of aggregations, and to estimate relative distance and relative size of the particles source.
出处
《计算物理》
EI
CSCD
北大核心
2012年第5期766-774,共9页
Chinese Journal of Computational Physics
基金
国家自然科学基金(11047003)
玉林师范学院青年基金(2010YJZD16)资助项目
关键词
局部区域
粒子源
随机运动
凝聚集团
local area
particles source
random motion
aggregations
