Direct simulation of flowing colloidal dispersions by smoothed profile method |
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Authors: | Yasuya Nakayama Kang Kim Ryoichi Yamamoto |
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Affiliation: | 1. Department of Chemical Engineering, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan;2. Department of Computational Molecular Science, Institute for Molecular Science, Nishigo-naka, Myodaiji, Okazaki 444-8585, Japan;3. Department of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan |
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Abstract: | We developed a simulation scheme to predict the dynamic behavior of colloidal dispersion called “smoothed profile (SP) method”. SP method provides a coupling scheme between continuum fluid dynamics and rigid-body dynamics through smoothed profile of colloidal particles. Moreover, SP method can incorporate multi-component fluids, such systems as charged colloids in electrolyte solutions. Numerical results which assess hydrodynamic interactions of colloidal dispersions are presented to validate SP method. Application of SP method is not restricted to a Newtonian solvent, but any constitutive model can be handled. Henceforth, it can be suitable to treat colloidal dispersions in complex fluids where solvent-mediated interaction dominate dynamical behaviors of colloids. |
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