Visualization of Taylor-Couette and spiral Poiseuille flows using a snapshot FLASH spatial tagging sequence

Kevin W. Moser, L. Guy Raguin, Andrew Harris, H. Douglas Morris, John Georgiadis, Mark Shannon, Mike Philpott

Research output: Contribution to journalArticlepeer-review

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. (C) 2000 Elsevier Science Inc.

Original languageEnglish (US)
Pages (from-to)199-207
Number of pages9
JournalMagnetic Resonance Imaging
Volume18
Issue number2
DOIs
StatePublished - Feb 1 2000

Keywords

  • DANTE tagging
  • NMR flow imaging
  • Snapshot FLASH
  • Spiral Poiseuille flow
  • Taylor-Couette flow

ASJC Scopus subject areas

  • Biophysics
  • Clinical Biochemistry
  • Structural Biology
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

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