Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 1975

Ключевые слова: dynamics, two dimensional turbulence, statistics, vortex system, model, Isotropic turbulence, energy transfer, energy spectrum, fine structure, inhomogeneous turbulent flow

Аннотация: A system of linear vortexes is considered as a model of two-dimensional turbulence. An exact solution is obtained for the problem of interaction between three vortexes-the first elementary interaction act in the kinetics of isotropic turbulence. This problem illustrates the tendency of energy transfer in the spectrum from small to large scales in a two-dimensional flow. A stationary solution of the equation for the defining functional of the vortex system is obtained which corresponds to an energy spectrum E(k)=x2sigma/4pik (x is the intensity and sigma-the density of the vortex distribution). A number of properties of the fine structure of an inhomogeneous turbulent flow are deduced on basis of an analysis of the hierarchy of s-vortex distributions..

Журнал: Journal of Experimental and Theoretical Physics

Выпуск журнала: Т. 41, № 5

Номера страниц: 937-943

ISSN журнала: 10637761

Место издания: Москва

Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)

• Novikov E.A. (Siberian Federal University)

• Ядро РИНЦ (eLIBRARY.RU)