Helical Turbulent Prandtl Number in the A Model of Passive Vector Advection: Two-Loop Approximation

被引：0
|
作者：
Hnatic, M. [1 ,2 ,3 ]
Zalom, P. [2 ,3 ]
机构：
[1] Safarik Univ, Fac Sci, Kosice, Slovakia
[2] SAS, Inst Expt Phys, Kosice 04001, Slovakia
[3] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Moscow, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2018年 / 81卷 / 06期
关键词：
RENORMALIZATION-GROUP APPROACH; DIMENSIONS; DYNAMICS;
D O I：
10.1134/S1063778818060170
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The field-theoretic renormalization group techniques are used to solve the general A model of passive vector advected by the fully developed turbulent velocity field with violation of spatial parity introduced via the continuous parameter which is essentially a problem of the classical Newtonian physics. The values of A represent a continuously adjustable parameter that governs the interaction structure of the model and is considered here for arbitrary real A. We demonstrate that helicity stabilizes the system as indicated in the region plot of allowed parameters A and . To characterize these properties the turbulent Prandtl number is employed.
引用
收藏
页码：863 / 868
页数：6
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