Recent developments in MRI applications to rheology and fluid mechanics.

被引：29
|
作者：
Rodts, S
Bertrand, F
Jarny, S
Poullain, P
Moucheront, P
机构：
[1] CNRS, Lab Mat & Struct Genie Civil, ENPC, LCPC,UMR 113, F-77420 Champs Sur Marne, France
[2] Lab Cent Ponts & Chaussees, F-44341 Bouguenais, France
来源：
COMPTES RENDUS CHIMIE | 2004年 / 7卷 / 3-4期
关键词：
proton MRI; velocimetry; rheometry; fluid mechanics; Couette cell;
D O I：
10.1016/j.crci.2003.11.007
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two recent developments using proton MRI velocimetry are reported, that concern both fields of rheology and of fluid mechanics. The first one is a way to get noticeable improvement in the signal-to-noise ratio during velocity measurements in a large-size 'Couette' rheometer. It opens a route to improve the study of complex or thixotrope fluids. The second one deals with the introduction of a model of concrete mixer inside the MRI facility. Thanks to synchronisation between movements of the model and MRI sequences, 3D velocity maps were obtained for a viscoplastic fluid inside the mixer. (C) 2004 Academie des sciences. Publie par Elsevier SAS. Tous droits reserves.
引用
下载
收藏
页码：275 / 282
页数：8
相关论文
共 50 条
12345