Twitter Google Share on Facebook Medical Wikipedia Related to Bingham:Bingham plastic,Bingham fluid Bing·ham (bĭng′əm),George Caleb1811-1879. American painter noted for his portraits and genre paintings of the American frontier. American Heritage® Dictionary of the English Language, Fifth ...
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After the fluid starts to flow there is a linear relationship between shear stress and shear rate. (2.7)τ=μpγ+τy (2.8)μp=R600−R300 (2.9)τy = R300 − μp = 2R300 − R600 where μp, = Plastic viscosity, cp τy = Yield point, lbf/100ft2 R300 = ...
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In this new approach the unyielded part is modelled as an evolving non material volume, whose motion is determined only by the stress applied by the fluid that surrounds the unyielded plug. Momentum balance is then written using an integral formulation where only the external stresses acting on...
the different unit operations that involve fluid flow, the properties of the fluids used, the richness of flow phenomena that occur by design, or otherwise. Of course, not all oil and gas flows involve yield stress fluids; suspensions, granular, shear-thinning, thixotropic, and viscoelastic media...
fluid mud layer are designated as h and H, respectively. Fig. 1. Definition sketch. Assuming that there is no interfacial mixing between the fluid mud layer and the clear water, the two-dimensional momentum and continuity equations of fluid mud are expressed as Eqs. (1) and (2), res...
On the basis of the non-linear model of the resistance forces to the flow of the fluid Bingham method of constructing the dependence of the pressure drop on the angular velocity of the rotor to determine the resistance forces to the flow of the fluid has been proposed. The...
The definition of the startup flow in parallel plates is as follows. A Bingham fluid is initially at rest between two infinite parallel plates separated by a distance 2h. At an instant t=0 a force G is applied transversal to the wall-normal (y) direction, causing the viscoplastic fluid to...
The governing partial differential equations describing the fluid flow and heat transfer have been solved (using the finite-element based COMSOL solver) over wide ranges of the pertinent dimensionless parameters, namely, Rayleigh number (10(3) <= Ra <= 10(5)), Prandtl number (1 <= Pr <= ...