Study of the free surface flow of water–kaolinite mixture by moving particle semi‐implicit (MPS) method |
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Authors: | J Xie YC Tai YC Jin |
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Institution: | 1. Faculty of Engineering and Applied Science, University of Regina, , Regina, Saskatchewan, Canada, S4S 0A2;2. Department of Hydraulic and Ocean Engineering, National Cheng Kung University, , Tnan, Taiwan |
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Abstract: | The flow of water–kaolinite mixtures exhibits a non‐Newtonian nature that differs from the flow of Newtonian fluid. The varying viscosities and shear history of non‐Newtonian fluid flows necessitate the use of a rheology model in moving particle semi‐implicit (MPS) for the numerical studies. On the other hand, the Lagrangian method has the advantage of handling free surface flows with large deformation and fragmentation. This study proposes a mesh‐free Lagrangian method, namely, the MPS method, together with a simple rheology model to investigate the non‐Newtonian free surface flows. The rheological parameters required in the rheology model are determined based upon experiments. The proposed method is applied to a water–kaolinite mixture collapse problem and is proved to be capable of reproducing the significant flow features observed in laboratory experiments. Copyright © 2013 John Wiley & Sons, Ltd. |
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Keywords: | particle method rheology model non‐Newtonian flow MPS water– kaolinite mixture |
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