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Simple models of nonlinear fluctuation dynamo

 

作者: Mikhail Belyanin,   Dmitry Sokoloff,   Anvar Shukurov,  

 

期刊: Geophysical & Astrophysical Fluid Dynamics  (Taylor Available online 1993)
卷期: Volume 68, issue 1-4  

页码: 237-261

 

ISSN:0309-1929

 

年代: 1993

 

DOI:10.1080/03091929308203569

 

出版商: Taylor & Francis Group

 

关键词: Fluctuation dynamo;nonlinear regimes;asymptotic solutions

 

数据来源: Taylor

 

摘要:

We discuss asymptotic solutions of nonlinear steady-state equations of the fluctuation dynamo, i.e. equations describing generation of a random magnetic field in a random mirror symmetric flow of conducting fluid. The flow is assumed to be locally homogeneous and isotropic and the correlation scalelis considered to be small in comparison to the size of the region occupied by the flow,L.These presumptions admit a closed nonlinear equation for the mean energy density of the magnetic field whose solutions are considered here forl/L≪ 1.

 

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