Bingham plastic


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Bingham plastic

[′biŋ·əm ‚plas·tik]
(fluid mechanics)
A non-Newtonian fluid exhibiting a yield stress which must be exceeded before flow starts; thereafter the rate of shear versus shear stress curve is linear.
References in periodicals archive ?
Georgiou, "On Poiseuille flows of a Bingham plastic with pressure-dependent rheological parameters," Journal of Non-Newtonian Fluid Mechanics, vol.
In previous studies, paste-like tailings slurry (PLTS) was simplified as a Bingham plastic fluid, whose flow properties were time-independent, and the existing empirical formulas for calculating the hydraulic gradient of a paste-like flow were derived based on the time-invariant Bingham model [7].
Non-Newtonian fluids include Bingham plastic fluid, pseudo-plastic fluid, and expansion fluid, depending on different rheological properties [17].
They employed Bingham plastic theory to model the nonlinear behavior of the Magneto rheological fluid [11].
They designed a failsafe MRF damper using Bingham plastic model and the magnetic field distribution was 3D electromagnetic finite element analysis [12].
Some of the tested fly ash samples (Tables 4-8) had moderate friction resistance with increasing concentration and they became Bingham plastic over 20% volumetric concentration and the coefficient of rigidity remains under 100 mPas up to 30% volumetric concentration.
Using this tailing for tests, it was determined that it becomes Bingham plastic over 18% of volumetric concentration with extreme high coefficient of rigidity and yield stress corresponding to increasing concentration (Table 11).
The curves in the figure show that the flow curve of Portland cement paste with cement CEM I 42.5 N and the plasticizing admixture added at 0.5wt% (Composition I) is not linear, as in the Bingham plastic model, but has a shape of a curve.
The flow curve is linear and corresponds to the Bingham plastic model, i.e.
For the commonly used Bingham plastic model, the Hedstrom technique overestimates turbulent flow friction losses because it does not take account of viscous-layer thickening.
[1], where analytical solutions were provided for the Bingham plastic model in simple flow fields.
Alexandrou, "Solution of the square lid-driven cavity flow of a Bingham plastic using the finite volume method," Journal of Non-Newtonian Fluid Mechanics, vol.