Influence of the condensate and inverse cascade on the direct cascade in wave turbulence

被引：9
作者：
Korotkevich, A. O. [1 ,2 ]
机构：
[1] Univ New Mexico, Dept Math & Stat, Albuquerque, NM 87131 USA
[2] RAS, LD Landau Theoret Phys Inst, Moscow 119334, Russia
来源：
MATHEMATICS AND COMPUTERS IN SIMULATION | 2012年 / 82卷 / 07期
关键词：
Wave turbulence; Condensate; Direct cascade; ENERGY-TRANSFER; GRAVITY-WAVES; SPECTRUM; SURFACE; VERIFICATION;
D O I：
10.1016/j.matcom.2010.07.009
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
During direct numerical simulation of the isotropic turbulence of surface gravity waves in the framework of Hamiltonian equations formation of the long wave background or condensate was observed. Exponents of the direct cascade spectra at the different levels of an artificial condensate suppression show a tendency to become closer to the prediction of the wave turbulence theory at lower levels of condensate. A simple qualitative explanation of the mechanism of this phenomenon is proposed. (C) 2010 IMACS. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1228 / 1238
页数：11
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