A SIMILARITY SOLUTION FOR THE DIRECT INTERACTION APPROXIMATION AND ITS RELATIONSHIP TO RENORMALIZATION-GROUP ANALYSES OF TURBULENCE

被引：13

作者：

WOODRUFF, SL ^{[1
]}

机构：

[1] BROWN UNIV,CTR FLUID MECH,PROVIDENCE,RI 02912

来源：

PHYSICS OF FLUIDS | 1994年 / 6卷 / 09期

关键词：

D O I：

10.1063/1.868130

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The application of Kraichnan's Direct Interaction Approximation [J. Fluid Mech. 5, 497 (1959)] to the inertial range of Navier-Stokes turbulence is examined. A similarity form valid in the inertial range is presented, along with several approximations permitting explicit solutions. The relationship of the present results to some recent renormalization-group calculations is discussed. It is shown that these renormalization-group calculations misrepresent the Direct Interaction Approximation's nonlinear interaction and that the addition of an artificial stirring force is unnecessary.

引用

页码：3051 / 3062

页数：12

共 34 条

[1] MATHEMATICAL-MODELS WITH EXACT RENORMALIZATION FOR TURBULENT TRANSPORT [J].