Flow of bingham fluids in complex geometries
WebJan 1, 1984 · Bingham fluids cannot contain yield surfaces in complex confined geometries like those used in molding and lubrication. Rather, yielding and flow must … WebMost drilling fluids are too complex to be characterized by a single value for viscosity. Fluids that do not exhibit a direct proportianality between shear stress and shear rate are classified as non-Newtonian. Since the Power-law fluids used in this study, Bingham plastic fluids definition and properties will not be given.
Flow of bingham fluids in complex geometries
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WebThe problem is one-dimensional immiscible displacement, in which a Bingham liquid is displaced by a Newtonian fluid. It is similar to the case of heavy-oil production by … WebApr 20, 2006 · A solid sphere falling through a Bingham plastic moves in a small envelope of fluid with shape that depends on the yield stress. A finite-element/Newton method is …
WebApr 13, 2024 · The flow is controlled by four main parameters: the Reynolds number Re Λ, the Weissenberg number Wi Λ, the viscosity ratio α and the Bingham number Bi Λ, all … WebMar 29, 2024 · Non-Newtonian fluids having Bingham or power-law rheology are common in many applications within drilling and reservoir engineering. Examples of such fluids are drilling muds, foams, heavy oil, hydraulic-fracturing and other stimulation fluids, and cement slurries. Despite the importance of non-Newtonian rheology, it is rarely used in reservoir …
WebApr 7, 2010 · Due to the complex flow geometry of the vane rheometer, relating measured quantities (torque and angular velocity) to rheological properties (yield stress and viscosity), represents a challenge. In this study, the smoothed particle hydrodynamics (SPH) method was used to simulate the flow of Bingham fluids in 2D vane and coaxial cylinders.
WebIn this paper, we studied the peristaltic flow and heat transfer of an incompressible, electrically conducting Bingham Non-Newtonian fluid in an eccentric uniform annulus in the presence of external uniform magnetic field with slip velocity and temperature jump at the wall conditions. The viscous and Joule dissipations are taken into account.
WebIn particular, n = 1 defines the Bingham fluid. However, numerical simulations and pore-network models [ 15, 17, 20] demonstrate the situation may be much more complex that Equation (1) may be expected when … chinese nuclear attack submarineWebNov 24, 2013 · In the present work, the yield stress of complex materials is analyzed and modeled using the Bautista-Manero-Puig (BMP) constitutive equation, consisting of the upper-convected Maxwell equation coupled to a kinetic equation to account for the breakdown and reformation of the fluid structure. chinese nuclear bomb testWebHowever, very little is known about the flow dynamics in narrow annular. Narrow annular drilling such as casing-while-drilling technique is gaining popularity due to its ability to mitigate nonproductive time during oil and gas drilling operations. However, very little is known about the flow dynamics in narrow annular grand ravines park ottawaWebJun 26, 2024 · This is particularly evident when the flow occurs in complex geometries and when major simplifications, such as lubrication approximation, can be applied. … chinese nuclear arsonalWebDec 8, 2009 · It has been recently shown that the flow of a Bingham fluid in a channel is always linearly stable (Nouar et al., J. Fluid Mech., vol. 577, 2007, p. 211).To identify possible paths of transition we revisit the problem for the case in which the idealized base flow is slightly perturbed. grand ravines southWebJul 21, 2024 · In this paper, laminar flow of non-Newtonian (Bingham) fluid is studied numerically in a two-dimensional lid-driven skewed cavity that incorporates … chinese nuclear expansion drishti iasWebJul 13, 2024 · Moreover, grid independence test has been performed for a skewed cavity for different values of Bingham numbers. Reynolds number and Bingham number are two important parameters which can describe the flow behavior of Bingham fluid in the skewed cavity. In this research, the skewness of the geometry has been changed by changing … grand ravioles party tupperware