Solids transport of non-Newtonian slurries in laminar open channel flow

Authors: Hernández, RH; Fuentes, RH

DOI https://doi.org/10.36487/ACG_rep/1263_29_Hernandez

Cite As:
Hernández, RH & Fuentes, RH 2012, 'Solids transport of non-Newtonian slurries in laminar open channel flow', in R Jewell, AB Fourie & A Paterson (eds), Paste 2012: Proceedings of the 15th International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 343-354, https://doi.org/10.36487/ACG_rep/1263_29_Hernandez

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Abstract:
Numerically the authors solved the Navier Stokes equations in two dimensions coupled with a highly non-linear advection-diffusion equation which predicts the volume fraction of solids in highly concentrated monomodal suspensions. Our main purpose is to simulate the solid transport of non-Newtonian slurries of high concentration in laminar 2D open channel and duct flows. The results of the 2D numerical simulation confirm that particle migration effectively occurs from high to low shear regions, provided that the sedimentation flux is smaller compared to other particle migration mechanisms (Phillips et al., 1992).

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