Unified model for coarse-slurry flow with stationary- and sliding bed

0364051 - ÚH 2012 RIV PL eng C - Conference Paper (international conference)
Matoušek, Václav - Krupička, Jan
Unified model for coarse-slurry flow with stationary- and sliding bed.
15^th International Conference on Transport and Sedimentation of Solid Particles. Wroclaw: Wroclaw University of Environmental and Life Sciences, 2011 - (Sobota, J.), s. 181-189. ISBN 978-83-62633-16-6.
[International Conference on Transport and Sedimentation of Solid Particles /15./. Wroclaw (PL), 06.09.2011-09.09.2011]
R&D Projects: GA ČR GA103/09/0383
Institutional research plan: CEZ:AV0Z20600510
Keywords : grain stress * solids friction * hydraulic conveying
Subject RIV: BK - Fluid Dynamics

The unified model for stratified flows in two regimes is discussed. Sensitivity analysis is carried out to estimate an effect of uncertainty in values of input parameters on predicted values of the hydraulic gradient within a broad range of slurry velocities. Alternative approaches to modeling of solids friction at flow boundaries are tested to show their effect on the hydraulic-gradient prediction using the unified model.
Permanent Link: http://hdl.handle.net/11104/0199633