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Title: Very small-scale, segregating-fluidized-bed experiments: A dataset for CFD-DEM validation and uncertainty quantification

Journal Article · · AIChE Journal
DOI:https://doi.org/10.1002/aic.17643· OSTI ID:1976262

Abstract Fluidization experiments were conducted on a small scale and with a rapid response (short duration) to enable corresponding simulations at low‐computational cost. Rise times are reported for four or fewer polyethylene particles (intruders) in an air‐fluidized bed of ~5000 group D glass beads. Experimental inputs were completely characterized—particle properties, system dimensions and operating conditions—which is necessary for validating computational fluid mechanics (CFD)‐discrete element method (DEM) including a comprehensive uncertainty quantification (UQ) analysis. Input uncertainties are reported as bounds or cumulative distribution functions of measured values. The staggering number of simulations required to complete a UQ analysis (~ O [10 4 ] simulations corresponding to ~5 uncertain inputs) motivates this study. These segregating‐bed experiments are designed to permit analogous CFD‐DEM simulations to complete in less than a day on a single (~2.5 GHz) computational processor unit (CPU). Segregation times are reported for several operating conditions, intruder sizes, and initial configurations, providing a rich dataset for numerical model testing, validation and UQ.

Research Organization:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0026298; DE‐FE0026298
OSTI ID:
1976262
Alternate ID(s):
OSTI ID: 1846687
Journal Information:
AIChE Journal, Vol. 68, Issue 6; ISSN 0001-1541
Publisher:
American Institute of Chemical EngineersCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Flow regimes in a spout–fluid bed: A combined experimental and simulation study journal July 2005
Minimum fluidization velocity of binary mixture of particles with large size ratio journal April 1986
A comprehensive framework for verification, validation, and uncertainty quantification in scientific computing journal June 2011
Dynamics of an intruder in a shaken granular bed journal October 2007
Effects of Gas Flow on Granular Size Separation journal May 2010
Real-Time Magnetic Resonance Imaging of Bubble Behavior and Particle Velocity in Fluidized Beds journal June 2018
Magnetic resonance imaging of single bubbles injected into incipiently fluidized beds journal June 2019
Experimental segregation profiles in bubbling gas-fluidized beds journal November 2007
Dynamical behaviour of fine granular glass/bronze mixtures under vertical vibration journal July 2003
Challenges of DEM: I. Competing bottlenecks in parallelization of gas–solid flows journal September 2014
Segregation by size difference in gas fluidized beds journal August 1998
Reverse Brazil Nut Problem: Competition between Percolation and Condensation journal April 2001
Spontaneous Air-Driven Separation in Vertically Vibrated Fine Granular Mixtures journal March 2002
Numerical Simulation and Experimental Study of the Gas–Solid Flow Behavior Inside a Full-Loop Circulating Fluidized Bed: Evaluation of Different Drag Models journal January 2018
Effect of air on granular size separation in a vibrated granular bed journal July 2005
Linking micro-scale predictions of capillary forces to macro-scale fluidization experiments in humid environments journal May 2016
Mechanisms in the size segregation of a binary granular mixture journal July 2006
Intruders in the Dust: Air-Driven Granular Size Separation journal November 2004
Digital image analysis measurements of bed expansion and segregation dynamics in dense gas-fluidised beds journal December 2003
Numerical simulation of air and particle motions in bubbling fluidized bed of small particles journal May 2000
Experimental and simulation study of heat transfer in fluidized beds with heat production journal June 2017
Fluidized-bed measurements of carefully-characterized, mildly-cohesive (Group A) particles journal February 2017
Toward reducing uncertainty quantification costs in DEM models of particulate flow: Testing simple, sensitivity-based, forward uncertainty propagation techniques journal January 2022
Particle segregation in fluidised binary mixtures journal January 1993
Validation of a Discrete Particle Model in a 2D Spout-Fluid Bed Using Non-Intrusive Optical Measuring Techniques journal February 2004
Solid Movement: Mixing, Segregation, and Staging book January 1991
Applying 2D shape analysis techniques to granular materials with 3D particle geometries
  • Cavarretta, I.; O’Sullivan, C.; Coop, M. R.
  • POWDERS AND GRAINS 2009: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MICROMECHANICS OF GRANULAR MEDIA, AIP Conference Proceedings https://doi.org/10.1063/1.3180057
conference January 2009
Numerical simulations of air-driven granular separation journal November 2003
PEPT and discrete particle simulation study of spout-fluid bed regimes journal January 2008
Particle mixing and segregation in gas fluidised beds. A review journal November 1976
A system-size independent validation of CFD-DEM for noncohesive particles: AIChE Letter: Particle Technology and Fluidization journal October 2015
Measurements of pressure drop and particle velocity in a pseudo 2-D rectangular bed with Geldart Group D particles journal April 2016
Validation of a discrete element model using magnetic resonance measurements journal August 2009
Experimental and numerical study on a bubbling fluidized bed with wet particles journal February 2016
Archimedes’ principle in fluidized granular systems journal September 2005
The role of interstitial gas in the Brazil Nut effect journal December 2003
CFD-DEM bidirectional coupling simulation and experimental investigation of particle ejections and energy conversion in a spouted bed journal November 2020
Sphericity and Roundness of Rock Particles journal April 1933