涡群中双涡相互作用的研究  

Study on Interaction of Binary Vortices in the Swarm of Vortices

作　　者：雷正翠[1] 马镜娴[1] 代刊[1] 

机构地区：[1]南京信息工程大学大气科学系,江苏南京210044

出　　处：《南京气象学院学报》2005年第3期369-375,共7页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金重点资助项目(40333028)

摘　　要：在涡旋自组织动力学的框架内,数值研究了涡群中双涡相互作用的问题,对比了弱环境流与涡群环境流两类条件下双涡作用的异同。指出:弱环境流条件下双涡合并的过程,在涡群环境条件下不再存在;同时,涡群环境流的引进可使涡强度显著增强。In the frame of the vortex self-organization dynamics the question of the interaction of binary vortices is investigated by using a numerical model and the differences and homogeneities of binary vortices interaction under the two types of conditions of weak enviromental fields and vortices swarm ambient flow are analyzed.It is shown that under the enviromental condition of vortices group the merger process of binary vortices happened in the case of weak enviromental fields no longer occurrs;and meanwhile,the introduction of vortices swarm might lead to the intensification of vortices.

关 键 词：涡旋 合并 涡增强 

分 类 号：P447[天文地球—大气科学及气象学]