Lagrangian measurements of fluid and inertial particles in decaying grid generated turbulence

被引：2

作者：

Ayyalasomayajula, Sathyanarayana ^{[1
]}

Gylfason, Armann ^{[2
]}

Warhaft, Zellman ^{[1
]}

机构：

[1] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14850 USA

[2] Reykjavik Univ, Reykjavik, Iceland

来源：

IUTAM SYMPOSIUM ON COMPUTATIONAL PHYSICS AND NEW PERSPECTIVES IN TURBULENCE | 2008年 / 4卷

关键词：

turbulence experiments; Reynolds number; wind tunnels; Lagrangian measurements; probability density functions;

D O I：

10.1007/978-1-4020-6472-2_26

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present preliminary measurements of the Lagrangian acceleration probability density function (pdf) of fluid particles in decaying grid-generated turbulence and show that they are in very good agreement with direct numerical simulations determined at the same Reynolds number. We contrast these pdf's with inertial particle acceleration pdf's done in the same apparatus.

引用

页码：171 / +

页数：2

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