期刊
POWDER TECHNOLOGY
卷 339, 期 -, 页码 459-469出版社
ELSEVIER
DOI: 10.1016/j.powtec.2018.08.041
关键词
Computational fluid dynamics; Volume of fluid; Discrete particle method; Bubble coalescence and rising; Three phase flow system
资金
- National Ministry of Science and Technology of China [2017YFB0602401]
- National Natural Science Foundation of China [21776173, 21625603]
- Program of Shanghai Subject Chief Scientist [18XD1402000]
- Center for High Performance Computing, Shanghai Jiao Tong University
A combined CFD-VOF-DPM method has been used to simulate bubble rising and coalescence phenomenon in low hold-upparticle-liquid suspension systems. The liquid is considered as the primary phase, while particles are considered as the discrete phase. Bubbles or bubble parcels are regarded as the gas phase modeled using the VOF method. On the basis of the independence analysis of grid and time-step sizes, the combined method predicts fluid dynamics accurately with slight discrepancy according to the validation with experimental results. Subsequently, three-phase hydrodynamics are systematically investigated and thoroughly discussed. (C) 2018 Elsevier B.V. All rights reserved.
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