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A Bubble-Based Drag Model at the Local-Grid Level for Eulerian Simulation of Bubbling Fluidized Beds
Joint Authors
Hong, Kun
Cao, Manqian
Ullah, Atta
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A bubble-based drag model at the local-grid level is proposed to simulate gas-solid flows in bubbling fluidized beds of Geldart A particles.
In this model, five balance equations are derived from the mass and the momentum conservation.
This set of equations along with necessary correlations for bubble diameter and voidage of emulsion phase is solved to obtain seven local structural parameters (uge, upe, εe, δb, ub, db, and ab) which describe heterogeneous flows of bubbling fluidized beds.
The modified drag coefficient obtained from the above-mentioned structural parameters is then incorporated into the two-fluid model to simulate the hydrodynamics of Geldart A particles in a lab-scale bubbling fluidized bed.
The comparison between experimental and simulation results for the axial and radial solids concentration profiles is promising.
American Psychological Association (APA)
Hong, Kun& Cao, Manqian& Ullah, Atta. 2016. A Bubble-Based Drag Model at the Local-Grid Level for Eulerian Simulation of Bubbling Fluidized Beds. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112672
Modern Language Association (MLA)
Hong, Kun…[et al.]. A Bubble-Based Drag Model at the Local-Grid Level for Eulerian Simulation of Bubbling Fluidized Beds. Mathematical Problems in Engineering No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1112672
American Medical Association (AMA)
Hong, Kun& Cao, Manqian& Ullah, Atta. A Bubble-Based Drag Model at the Local-Grid Level for Eulerian Simulation of Bubbling Fluidized Beds. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112672
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112672