Effect of friction coefficient and density on mixing particles in the rolling regime |
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Authors: | Amara Aït Aissa Carl Duchesne |
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Affiliation: | a Department of Chemical Engineering, Université Laval, Quebec City, Canada, G1V 0A6b CERMA, Université Laval, Quebec City, Canada, G1V 0A6 |
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Abstract: | In this work, optical imaging is used to quantify the mixing dynamics of granular materials. Two different methods (GLCM and Multivariate RGB analysis) are combined to extract surface information and the time to achieve a specific degree of mixing. In particular, the effect of density, friction coefficient, surface quality and particle geometry was studied. The results show that the Froude number alone is not enough to completely characterize the rolling regime. In addition, the filling ratio must be in a specific range which depends on the material properties. |
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Keywords: | Solid mixing Filling ratio Froude number |
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