Analysis and flow behaviour prediction of paste material in sheet flow

Authors: Slatter, PT

DOI https://doi.org/10.36487/ACG_rep/1363_36_Slatter

Cite As:
Slatter, PT 2013, 'Analysis and flow behaviour prediction of paste material in sheet flow', in R Jewell, AB Fourie, J Caldwell & J Pimenta (eds), Paste 2013: Proceedings of the 16th International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 473-480, https://doi.org/10.36487/ACG_rep/1363_36_Slatter

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Abstract:
The free surface flow behaviour and characterisation of paste and thickened tailings material is of critical importance at discharge. A previous study has shown that these flows can be scaled for engineering design purposes using a sheet flow diagram. The objective of this paper is to develop and evaluate the free surface sheet flow approach for the flow behaviour analyses, rheological characterisation, and prediction of the laminar/turbulent transition for viscoplastic sheet flows of paste and thickened tailings material. The previously developed approach for power law fluids has now been extended to the analysis and flow behaviour prediction of paste and thickened tailings viscoplastic materials. The approach is validated against experimental viscoplastic data, and found to have significant merit in this case. Issues requiring further work have been identified and discussed.

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