<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Vertical concentration distributions of solids conveyed in Newtonian fluids can be modelled using Rouse-Schmidt type distributions. Observations of solids conveyed in turbulent low Reynolds number visco-plastic carriers, suggest that solids are more readily suspended than their Newtonian counterparts, producing higher concentrations in the centre of the pipe. A Newtonian concentration profile model was adapted to include typical turbulent viscosity distributions within the pipe and particle motion calculated using non-Newtonian sheared settling. Predictions from this and the unmodified model, using the same wall viscosity, are compared with the chord averaged profile extracted from tomographic data obtained using a 50 mm horizontal pipe.</p>
</abstract>

Vertical concentration distributions of solids conveyed in Newtonian fluids can be modelled using Rouse-Schmidt type distributions. Observations of solids conveyed in turbulent low Reynolds number visco-plastic carriers, suggest that solids are more readily suspended than their Newtonian counterparts, producing higher concentrations in the centre of the pipe. A Newtonian concentration profile model was adapted to include typical turbulent viscosity distributions within the pipe and particle motion calculated using non-Newtonian sheared settling. Predictions from this and the unmodified model, using the same wall viscosity, are compared with the chord averaged profile extracted from tomographic data obtained using a 50 mm horizontal pipe.

Modelling vertical concentration distributions of solids suspended in turbulent visco-plastic fluid

Faculty of Civil Engineering, Department of Hydraulics and Hydrology

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Vertical concentration distributions of solids conveyed in Newtonian fluids can be modelled using Rouse-Schmidt type distributions. Observations of solids...

Modelling vertical concentration distributions of solids suspended in turbulent visco-plastic fluid

Publié en ligne: 10 août 2021

Pages: 255 - 262

Reçu: 06 mars 2021

Accepté: 11 mai 2021

DOI: https://doi.org/10.2478/johh-2021-0013

Mots clés
Complex slurry flow, Non-Newtonian flow, Solids distribution, Pipe flow, Particle settling, Laboratory experiment

© 2021 Václav Matoušek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Modelling vertical concentration distributions of solids suspended in turbulent visco-plastic fluid

Publié en ligne: 10 août 2021

Pages: 255 - 262

Reçu: 06 mars 2021

Accepté: 11 mai 2021

DOI: https://doi.org/10.2478/johh-2021-0013

Mots clésComplex slurry flow, Non-Newtonian flow, Solids distribution, Pipe flow, Particle settling, Laboratory experiment

© 2021 Václav Matoušek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Complex slurry flow, Non-Newtonian flow, Solids distribution, Pipe flow, Particle settling, Laboratory experiment