期刊
AICHE JOURNAL
卷 58, 期 3, 页码 756-769出版社
WILEY
DOI: 10.1002/aic.12619
关键词
computational fluid dynamics; circulating fluidized bed; gas-solid jet; flow hydrodynamics; mixing
资金
- U.S. Department of Energy
- RES [DE-FE0004000]
Three-dimensional high-resolution numerical simulations of a gassolid jet in a high-density riser flow were conducted. The impact of gassolid injection on the riser flow hydrodynamics was investigated with respect to voidage, tracer mass fractions, and solids velocity distribution. The behaviors of a gassolid jet in the riser crossflow were studied through the unsteady numerical simulations. Substantial separation of the jetting gas and solids in the riser crossflow was observed. Mixing of the injected gas and solids with the riser flow was investigated and backmixing of gas and solids was evaluated. In the current numerical study, both the overall hydrodynamics of riser flow and the characteristics of gassolid jet were reasonably predicted compared with the experimental measurements made at NETL. Published 2011 American Institute of Chemical Engineers AIChE J, 2012
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