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Ultrafast velocity imaging of single- and two-phase flows in a ceramic monolith

✍ Scribed by Jon J. Heras; Andrew J. Sederman; Lynn F. Gladden

Publisher: Elsevier Science
Year: 2005
Tongue: English
Weight: 111 KB
Volume: 23
Category: Article
ISSN: 0730-725X
DOI: 10.1016/j.mri.2004.11.037

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✦ Synopsis

Ceramic monoliths, comprising arrays of parallel channels, are increasingly being considered as an alternative to conventional packed beds for chemical processing operations involving both single-and two-phase flows. This paper reports results obtained using a technique based on the rapid acquisition with relaxation enhancement (RARE) pulse sequence in which multiple images are obtained from a single r.f. excitation. The technique is applied to study single-and two-phase flow in a monolith rated at 200 channels per square inch (cpsi). A single image frame, acquired in 156 ms, provides a characterization of the heterogeneity in the magnitude and direction of the flow within the monolith.

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