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Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed

Swirling fluidized bed (SFB) is a newer version of the well-known bubbling bed and very little know. An insight study is therefore required for complete understanding of the hydrodynamics of a SFB operation. The current study was conducted on stable regime of a SFB operated at different blade fin an...

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Main Authors: Naz, M.Y., Sulaiman, S.A., Bou-Rabee, M.A.
Format: Article
Published: Taylor and Francis Inc. 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008429082&doi=10.1080%2f07373937.2016.1166124&partnerID=40&md5=1f4f9cd854cb55976c37153890a87883
http://eprints.utp.edu.my/19648/
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spelling my.utp.eprints.196482018-04-20T07:24:13Z Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed Naz, M.Y. Sulaiman, S.A. Bou-Rabee, M.A. Swirling fluidized bed (SFB) is a newer version of the well-known bubbling bed and very little know. An insight study is therefore required for complete understanding of the hydrodynamics of a SFB operation. The current study was conducted on stable regime of a SFB operated at different blade fin angles, blade inclination angles, particle densities and superficial air velocities. Roughly one quarter of the fluidized bed was photographed and its velocity vector field plots were generated using a MATLAB supported particle tracking velocimetry (PTV) technique. At lower superficial velocities, Gaussian distribution of the velocity vectors was predicted along the radius of the bed. Particles in the vicinity of the bed walls moved relatively slower than those marching in the middle of the bed. However, at higher superficial velocities, the particles closer to the cone boundary were moving with velocities comparable to the particles in the middle of the bed. Unlikely, the particles closer to the outer bed wall kept on moving with lower velocities regardless of increasing superficial air velocity. A further look into individual velocity vector profiles revealed negligible influence of smaller blade angles (9° and 12°) on particles’ motion. The overall velocity magnitude decreased by 6 with 3° increase in blade fin angle and by 9 with 5° increase in inclination angle. Contrarily, the particle velocity underwent a monotonic decrease with particle density. © 2017 Taylor & Francis. Taylor and Francis Inc. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008429082&doi=10.1080%2f07373937.2016.1166124&partnerID=40&md5=1f4f9cd854cb55976c37153890a87883 Naz, M.Y. and Sulaiman, S.A. and Bou-Rabee, M.A. (2017) Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed. Drying Technology, 35 (2). pp. 193-202. http://eprints.utp.edu.my/19648/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Swirling fluidized bed (SFB) is a newer version of the well-known bubbling bed and very little know. An insight study is therefore required for complete understanding of the hydrodynamics of a SFB operation. The current study was conducted on stable regime of a SFB operated at different blade fin angles, blade inclination angles, particle densities and superficial air velocities. Roughly one quarter of the fluidized bed was photographed and its velocity vector field plots were generated using a MATLAB supported particle tracking velocimetry (PTV) technique. At lower superficial velocities, Gaussian distribution of the velocity vectors was predicted along the radius of the bed. Particles in the vicinity of the bed walls moved relatively slower than those marching in the middle of the bed. However, at higher superficial velocities, the particles closer to the cone boundary were moving with velocities comparable to the particles in the middle of the bed. Unlikely, the particles closer to the outer bed wall kept on moving with lower velocities regardless of increasing superficial air velocity. A further look into individual velocity vector profiles revealed negligible influence of smaller blade angles (9° and 12°) on particles’ motion. The overall velocity magnitude decreased by 6 with 3° increase in blade fin angle and by 9 with 5° increase in inclination angle. Contrarily, the particle velocity underwent a monotonic decrease with particle density. © 2017 Taylor & Francis.
format Article
author Naz, M.Y.
Sulaiman, S.A.
Bou-Rabee, M.A.
spellingShingle Naz, M.Y.
Sulaiman, S.A.
Bou-Rabee, M.A.
Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
author_facet Naz, M.Y.
Sulaiman, S.A.
Bou-Rabee, M.A.
author_sort Naz, M.Y.
title Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
title_short Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
title_full Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
title_fullStr Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
title_full_unstemmed Particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
title_sort particle tracking velocimetry investigations on density dependent velocity vector profiles of a swirling fluidized bed
publisher Taylor and Francis Inc.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008429082&doi=10.1080%2f07373937.2016.1166124&partnerID=40&md5=1f4f9cd854cb55976c37153890a87883
http://eprints.utp.edu.my/19648/
_version_ 1738656099941220352
score 13.211869

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