Rheology of Hyperconcentrations

作者: Pierre Y. Julien , Yongqiang Lan

DOI: 10.1061/(ASCE)0733-9429(1991)117:3(346)

关键词: TurbulenceCohesion (geology)EngineeringQuadratic equationShear stressFluid dynamicsDimensionless quantityRheologyQuadratic modelClassical mechanicsMechanicsMechanical engineeringCivil and Structural EngineeringWater Science and Technology

摘要: A physically based quadratic rheological model for hyperconcentrated flows is tested with experimental data sets. The includes components de­ scribing: (1) Cohesion between particles; (2) viscous friction fluid and sediment (3) impact of (4) turbulence. resulting qua­ dratic formulation the shear stress shown to be in excellent agreement sets Bagnold, Savage McKeown, Govier et al. When written a linearized dimensionless form, ratio D* dispersive stresses play dominant role rheol­ ogy hyperconcentr ations. best suited when (30 400).

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