标题:Impact of small scale turbulent flows on dynamo actions
作者:Xu, Mingtian
作者机构:[Xu, MT]Shandong Univ, Sch Civil Engn, Dept Engn Mech, Jinan 250061, Peoples R China.
通讯作者:Xu, MT
通讯作者地址:[Xu, MT]Shandong Univ, Sch Civil Engn, Dept Engn Mech, Jinan 250061, Peoples R China.
来源:PHYSICS LETTERS A
出版年:2015
卷:379
期:6
页码:577-580
DOI:10.1016/j.physleta.2014.12.009
关键词:Dynamo action; Mean-field theory; Turbulence
摘要:Based on the mean-field dynamo theory, the integral equation approach is extended to investigate the impact of the small scale turbulence on the onset of the dynamo actions in the cylindrical vessel by taking the Beltrami-like flows as mean flows and modeling the small scale turbulence with alpha-effect. The numerical results show that the small scale isotropic turbulence may have a detrimental or helpful effect on the onset of the dynamo action, which depends on the mean flow. However, the strong isotropic turbulence prefers to excite the m = 0 magnetic mode. (C) 2014 Elsevier B.V. All rights reserved.
收录类别:SCOPUS;SCIE
WOS核心被引频次:1
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027957827&doi=10.1016%2fj.physleta.2014.12.009&partnerID=40&md5=513847f279b032b3a2e55b9b422a7095
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