Very small-scale, segregating-fluidized-bed experiments: A dataset for CFD-DEM validation and uncertainty quantification
- University of Colorado, Boulder, CO (United States)
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
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