Journal of Shanghai University(Natural Science Edition) ›› 2016, Vol. 22 ›› Issue (6): 753-762.doi: 10.3969/j.issn.1007-2861.2015.01.007

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Simulation of slurry flow with high sediment concentration based on two-fluid model

LIANG Chengpeng, CHEN Hongxun, QIAN Tao   

  1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
  • Received:2015-03-18 Online:2016-12-30 Published:2016-12-30

Abstract:

Since sediment usually has a negative effect on hydropower project, it is necessary to develop appropriate methods to analyze sediment transport. Due to complexity of high concentration granular flow, a three dimensional two-fluid model was proposed to study slurry flows of both suspended load and traction load. The model took into account interaction between particles and water, as well as inter-particle collision and fluctuation of the two phase volume fraction. Numerical simulation of an open-channel sediment experiment of Coleman was used to validate the two-fluid model. Based on the model validation, the deposition effect of a specific desander was analyzed.

Key words:  desander,  numerical simulation ,  two-fluid model , high concentration