An update on the energy dissipation rate in isotropic turbulence

被引:241
作者
Sreenivasan, KR [1 ]
机构
[1] Yale Univ, Mason Lab, New Haven, CT 06520 USA
关键词
D O I
10.1063/1.869575
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Direct numerical simulations of homogeneous turbulence in a periodic box are examined here to support the traditional expectation that the dissipation rate at high Reynolds numbers is independent of fluid viscosity, and is a constant of order unity when scaled on the integral scale and root-mean-square velocity. However, the numerical value of the constant appears to depend on details of forcing at low wavenumbers, or, perhaps, the structure of the large scale itself. (C) 1998 American Institute of Physics. [S1070-6631(98)01002-2].
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页码:528 / 529
页数:2
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