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| Study of numerical model coupling of hydrodynamic CFD-DEM simulation |
| Received:April 27, 2015 Revised:August 25, 2015 |
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| DOI：10.7511/jslx201605014 |
| KeyWord:computational fluid dynamics(CFD) discrete element method(DEM) particle collision sediment motion |
| Author | Institution |
| 车海鸥 |
上海交通大学 船舶海洋与建筑工程学院, 上海 |
| 王凯 |
上海交通大学 船舶海洋与建筑工程学院, 上海 |
| 张景新 |
上海交通大学 船舶海洋与建筑工程学院, 上海 ;河口海岸交通行业重点实验室, 上海 ;上海交通大学 水动力学教育部重点实验室, 上海 |
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| Abstract: |
| In order to investigate the sediment transportation by means of numerical simulating particles' motion,a numerical model coupling of CFD and DEM is established in this paper.The codes in-house is based on Fortran.There are two types of particle collision modes established in the present numerical model,i.e.the rigid particle mode and the soft particle mode.To verify the numerical model,two study cases were carried out.One is about the free falling motion of a single spherical particle in the still water,and the another one is about the motion of well mixed particles with different density initially in the still water. With the well validation,the present numerical model is confirmed to be feasible in the research of sediment motion with the mesosopic view. |
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