Investigating a stretched vortex with ultrafast two-dimensional ultrasonic speckle velocimetry

被引：11

作者：

Manneville, S ^{[1
]}

Sandrin, L ^{[1
]}

Fink, M ^{[1
]}

机构：

[1] Univ Denis Diderot, Ecole Super Phys & Chim, Lab Ondes & Acoust, CNRS,UMR 7587, F-75005 Paris, France

来源：

PHYSICS OF FLUIDS | 2001年 / 13卷 / 06期

关键词：

D O I：

10.1063/1.1370388

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Ultrasonic speckle velocimetry (USV) was recently introduced as a new ultrafast tool for measuring fluid velocities in two dimensions by analyzing the speckle signal backscattered from particles moving with the flow [Sandrin , Appl. Phys. Lett. 78, 1155 (2001)]. An experimental study of a stationary stretched vortex is presented, which demonstrates the efficiency of ultrafast 2D USV in terms of quantitative assessment of vortical flows. The full velocity field is recovered and compared to the Burgers model for two different fluids: water and milk. The dependence of the vortex characteristics on the main control parameter is investigated. (C) 2001 American Institute of Physics.

引用

页码：1683 / 1690

页数：8

共 23 条

[1]

[Anonymous], LECT NOTES PHYS

[2] SPECTRAL-ANALYSIS OF THE VONKARMAN FLOW USING ULTRASOUND SCATTERING [J].