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Herschel–Bulkley fluid
About: Herschel–Bulkley fluid is a research topic. Over the lifetime, 1946 publications have been published within this topic receiving 49318 citations.
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TL;DR: The prediction of the self-diffusion tensor of inertial particles embedded in a viscous fluid is accurate provided that the kinetic stress components are correctly predicted.
Abstract: We propose a theoretical prediction of the self-diffusion tensor of inertial particles embedded in a viscous fluid. The derivation of the model is based on the kinetic theory for granular media including the effects of finite particle inertia and drag. The self-diffusion coefficients are expressed in terms of the components of the kinetic stress tensor in a general formulation. The model is valid from dilute to dense suspensions and its accuracy is verified in a pure shear flow. The theoretical prediction is compared to simulations of discrete particle trajectories assuming Stokes drag and binary collisions. We show that the prediction of the self-diffusion tensor is accurate provided that the kinetic stress components are correctly predicted.
16 citations
TL;DR: In this paper, the effect of interface curvature and wide range of viscosity ratio of two phases on flow behavior has been investigated and the results illustrate that the non-Newtonian rheological properties have significant effects on dimensionless velocity and consequently on two phase flow pressure drop specially for larger viscosities ratio.
16 citations
TL;DR: In this paper, a single phase non-Newtonian microporous flow combined with the electroviscous effect is investigated under conditions of various rheological properties and electrokinetic parameters.
Abstract: Single phase non-Newtonian microporous flow combined with the electroviscous effect is investigated in the pore-scale under conditions of various rheological properties and electrokinetic parameters. The lattice Boltzmann method is employed to solve both the electric potential field and flow velocity field. The simulation of commonly used power-law non-Newtonian flow shows that the electroviscous effect on the flow depends on both the fluid rheological behavior and pore surface area ratio significantly. For the shear thinning fluid with power-law exponent n < 1, the fluid viscosity near the wall is smaller and the electrovicous effect plays a more important role compared to the Newtonian fluid and shear thickening fluid. The high pore surface area ratio in the porous structure increases the electroviscous force and the induced flow resistance becomes important even to the flow of Newtonian and shear thickening fluids.
16 citations
TL;DR: In this paper, the velocity of the rotating EMHD flow of power-law fluid through a narrow microchannel is investigated, where the flow is actuated by the Coriolis force raised from the rotation of the microchannel and the Lorentz force induced by the interaction between electric and magnetic fields.
16 citations
TL;DR: In this paper, the exact solution for calendering a third-order fluid under lubrication approximation is presented, and the solution obtained is valid for all values of the thirdorder fluid parameter.
Abstract: This paper presents the exact solution for calendering a third-order fluid under lubrication approximation. The solution obtained is valid for all values of the third-order fluid parameter. This ex...
16 citations