Abstract:
:A new magnetic resonance imaging technique was applied to the Taylor-Couette and spiral Poiseuille (Taylor-Couette with superposed mean axial flux) flows for the first time. The experimental technique is a combination of spatial tagging methods and a snapshot FLASH imaging sequence, which allows the full-field visualization of 2-D slices of the flow field, with image acquisition times approximately half a second. By acquiring images every few seconds, direct visualization of flow patterns can be obtained in the form of cinematography. Tagged images of the Taylor-Couette flow were acquired in both the axial and transverse planes and confirmed previously reported numerical predictions of Taylor cell size. Tagged images of the spiral Poiseuille flows verified that the cells in this flow propagate at a higher velocity than the mean axial flow. In addition, intermittent cell formation was observed as the axial flow was increased.
journal_name
Magn Reson Imagingjournal_title
Magnetic resonance imagingauthors
Moser KW,Raguin LG,Harris A,Morris HD,Georgiadis J,Shannon M,Philpott Mdoi
10.1016/s0730-725x(99)00121-6subject
Has Abstractpub_date
2000-02-01 00:00:00pages
199-207issue
2eissn
0730-725Xissn
1873-5894pii
S0730-725X(99)00121-6journal_volume
18pub_type
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