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Showing 1 to 11 of 11 for “"Power law fluid"”.
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Helical flow of non-Newtonian fluids, with reference to drilling fluid flow.
… understand better the complex flow of drilling fluids in oil wells. After an initial discussion of the flow and its complexities, mathematical models are considered, and a 'helical flow' model adopted as being a reasonable approximation to the flow which may be solved in practice. Rheological …
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Modeling arterial blood flow using radial basis functions
… simulation to the problem. This thesis examined fluid flow in arteries using a meshless method, namely radial basis functions with a time integration technique. Since meshless methods do not require the time consuming step of connective mesh generation, interest has grown about applying them in …
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Flow of power law fluids with application to oil drilling
… study of the flow behaviour of inelastic power law fluids in two different types of flow situation. These are: 1. The creeping motion of a sphere moving through an expanse of liquid. 2. The combined steady and oscillatory flow of a liquid through a straight tube of circular cross section. …
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On the solution of external laminar free convection to power law fluids
"Pseudoplastic fluids (power law fluid index N [less than] 1), dilatant fluids (N>1), and even Newtonian fluids (N=1) are commonly called power laws fluids, because they show an empirical shear stress (T)-strain rate (relationship known as the power law where N and m are empirical constants …
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The Correlated Dynamics of Micron-Scale Cantilevers in a Viscous Fluid
… include a variety of configurations and viscous fluids. It is first shown that the correlated dynamics of both a laterally and vertically offset cantilever pair can be accurately predicted by numerical simulations. This is verified by comparing the correlated dynamics yielded by numerical …
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Experimental and Analytical Investigation of Particle Dynamics in Newtonian and non-Newtonian Fluids in a Taylor-Couette Cell
… sedimentation in Newtonian and non-Newtonian fluids, aiming to understand their behavior in Drilling Fluid (DF) systems used in oil and gas industry, where such phenomenon can lead to operational issues such as lost circulation, well control problems, and even blowouts. To simulate DF dynamics …
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Non-Newtonian effects and Taylor-Aris despersion in rivulet flow
… two aspects of the steady flow of rivulets of fluid, namely the effects of non-Newtonian rheology, and the transport of a passive solute in a rivulet of Newtonian fluid. In Chapters 2-4 we consider rivulet flow of non-Newtonian fluids. Firstly, we obtain the solution for unidirectional …
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Flow and stability studies in porous media based on some non-Darcian models.
… used to study the problem of unsteady flow of a power-law fluid in a porous medium. A mathematical analysis for two typical initial-boundary value problems, which correspond to well-test cases in the oil industry, is presented.Dept. of Mathematics and Statistics. Paper copy at Leddy Library: …
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The Effective Viscosity of Ash-Laden Flows
… of the slurries tested could be classified as a power-law fluid; more specifically, all slurries exhibited pseudoplastic (shear thinning) behavior. Slurries containing only ash behaved differently than slurries containing only silt or sand. Also, in the slurries containing ash, silt and sand, it …
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The Effective Viscosity of Ash-Laden Flows
… of the slurries tested could be classified as a power-law fluid; more specifically, all slurries exhibited pseudoplastic (shear thinning) behavior. Slurries containing only ash behaved differently than slurries containing only silt or sand. Also, in the slurries containing ash, silt and sand, it …
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Effects of plasticizers on extrusion of PVC: an experimental & numerical study
… observed that pressure build-up, flow rate and power requirement were affected by the plasticizer type with the DIDP plasticized materials generating higher pressures and requiring more power than the other two plasticized materials. The differences in extrusion characteristics have been …