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논문 기본 정보

자료유형
학술저널
저자정보
Tae-Young Kim (FunctionBay) Gyu-Mok Jeon (Pusan National University) Jong-Chun Park (Pusan National University)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제35권 제2호(통권 제159호)
발행연도
2021.4
수록면
121 - 130 (10page)

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초록· 키워드

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In this study, a computational fluid dynamics (CFD) simulation based on an Eulerian-Eulerian approach was used to evaluate the mixing performance of a mud agitator through the distribution of bulk particles. Firstly, the commercial CFD software Star-CCM+ was verified by performing numerical simulations of single-phase water mixing problems in an agitator with various turbulence models, and the simulation results were compared with an experiment. The standard model was selected as an appropriate turbulence model, and a grid convergence test was performed. Then, a simulation of the liquid-solid multi-phase mixing in an agitator was simulated with different multi-phase interaction models, and lift and drag models were selected. In the case of the lift model, the results were not significantly affected, but Syamlal and O’Brien’s drag model showed more reasonable results with respect to the experiment. Finally, with the properly determined simulation conditions, a multi-phase flow simulation of a mud agitator was performed to predict the mixing time and spatial distribution of solid particles. The applicability of the CFD multi-phase simulation for the practical design of a mud agitator was confirmed.

목차

ABSTRACT
1. Introduction
2. Numerical Formulation and Conditions
3. Simulation Results
4. Conclusions
References

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