Ultrasonic Doppler velocimetry in liquid gallium

被引：137

作者：

Brito, D ^{[1
]}

Nataf, HC ^{[1
]}

Cardin, P ^{[1
]}

Aubert, J ^{[1
]}

Masson, JP ^{[1
]}

机构：

[1] Univ Grenoble 1, Lab Geophys Interne & Tectonophys, Observ Sci, F-38041 Grenoble 09, France

来源：

EXPERIMENTS IN FLUIDS | 2001年 / 31卷 / 06期

关键词：

D O I：

10.1007/s003480100312

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

For the first time, flow velocity is measured in a vortex of liquid gallium, using the pulsed Doppler shift ultrasonic method. At the top of a copper cylinder filled with liquid gallium, we spin a disk and create a turbulent vortex with a dominant nearly axisymmetric velocity field with little variation in the axial direction. The velocity profiles are shown to be well resolved and in quantitative agreement with earlier observations. Reliable velocity measurements in liquid gallium could be obtained only after serious problems due to the formation of oxides were solved. This work opens the way to performing accurate velocity measurements in other liquid metals; preliminary results for liquid sodium are shown.

引用

页码：653 / 663

页数：11

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