Large scale inhomogeneity of inertial particles in turbulent flows

被引：79

作者：

Boffetta, G

De Lillo, F

Gamba, A

机构：

[1] Univ Turin, Dipartimento Fis Gen, I-10125 Turin, Italy

[2] Univ Turin, INFM, I-10125 Turin, Italy

[3] CNR, ISAC, Sez Torino, I-10133 Turin, Italy

[4] Politecn Torino, Dipartimento Matemat, I-10129 Turin, Italy

来源：

PHYSICS OF FLUIDS | 2004年 / 16卷 / 04期

关键词：

D O I：

10.1063/1.1667807

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Preferential concentration of inertial particles in turbulent flow is studied by high resolution direct numerical simulations of two-dimensional turbulence. The formation of network-like regions of high particle density, characterized by a length scale which depends on the Stokes number of inertial particles, is observed. At smaller scales, the size of empty regions appears to be distributed according to a universal scaling law. (C) 2004 American Institute of Physics.

引用

页码：L20 / L23

页数：4

共 18 条

[1] Effect of preferential concentration on the settling velocity of heavy particles in homogeneous isotropic turbulence [J].