COMPUTATION OF THE LOITSIANSKI INTEGRAL IN DECAYING ISOTROPIC TURBULENCE

被引：20

作者：

CHASNOV, JR

机构：

[1] Center for Turbulence Research, NASA Ames Research Center, Moffett Field

[2] Hong Kong University of Science and Technology, Kowloon, Clear Water Bay

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 11期

关键词：

D O I：

10.1063/1.858773

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The time evolution of the Loitsianski integral at high-Reynolds numbers is determined by computing an ensemble average of a large number of independent large-eddy simulations of decaying isotropic turbulence. It is found that the Loitsianski integral becomes proportional to t(gamma) at large times and that gamma almost-equal-to 0.25. The present simulations illustrate the efficient use of massively parallel computers for simulating large ensembles of turbulent flows.

引用

页码：2579 / 2581

页数：3

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