Measurement of solute diffusivities. Part III. From solutal convection dominated transport to quasi-diffusive transport

被引：15

作者：

Botton, V ^{[1
]}

Lehmann, P ^{[1
]}

Bolcato, R ^{[1
]}

Moreau, R ^{[1
]}

机构：

[1] EPM Madylam, ENSHMG, F-38402 St Martin Dheres, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2004年 / 47卷 / 10-11期

关键词：

D O I：

10.1016/j.ijheatmasstransfer.2003.10.037

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents an analytical and experimental investigation of the new ground-based method for diffusion measurements in liquid metals presented in the two companion papers. The configuration under consideration is a horizontal capillary tube submitted to a vertical steady magnetic field; the temperature field is assumed isothermal. The aim of this third part is to introduce a single description of transport in a diffusion experiment over a wide range of parameters (namely magnetic field intensity and experimental duration), which overlaps both the two asymptotic models previously presented. The experimental results, obtained in two different apparatus, are in good agreement with the analytical model and exhibit a fair repeatability. The impurity diffusion coefficient of Bi in Sn is measured at 275 degreesC and near the fusion point, in good agreement with recent microgravity data. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2457 / 2467

页数：11

共 14 条

[1] Asymptotic analysis and symmetry in MHD convection [J].