Extension of PIV for measuring granular temperature field in dense fluidized beds.

W. Dijkhuizen, G.A. Bokkers, N.G. Deen, M. Sint Annaland, van, J.A.M. Kuipers

Research output: Contribution to journalArticleAcademicpeer-review

31 Citations (Scopus)
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Abstract

In this work a particle image velocimetry (PIV) technique has been extended to enable the simultaneous measurement of the instantaneous velocity and granular temperature fields. The PIV algorithm has been specifically optimized for dense granular systems and has been thoroughly tested with artificially generated images. The new PIV technique has been successfully applied to a fluidized bed at incipient fluidization conditions in which a single bubble is injected by a jet and to a freely bubbling fluidized bed. The instantaneous spatial distribution of the solids-phase velocity and granular temperature that can be measured with this new technique can be used to validate CFD models for dense granular systems, such as multifluid continuum models using the KTGF (kinetic theory of granular flow) to describe the internal momentum transport in the particulate phase.
Original languageEnglish
Pages (from-to)108-118
JournalAIChE Journal
Volume53
Issue number1
DOIs
Publication statusPublished - 2007

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