Results 31 to 40 of about 380,217 (328)
Lattice Boltzmann simulations of unsteady Bingham fluid flows
Applications in Engineering ScienceTransient flows of viscoplastic fluids have very peculiar characteristics. The startup and cessation flows of viscoplastic materials have been subject to many theoretical and numerical investigations. The most challenging aspect of numerical solutions of
Alan Lugarini +2 more
doaj +1 more source
Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan), 1982 The present paper summarizes various problems on non-Newtonian fluid mechanics. Due to complex rheological behaviors of non-Newtonian fluids, constitutive equations have highly nonlinear character. As two approaches to obtain constitutive equations, continuum mechanics and molecular theory are described, and then a number of models are presented ...
openaire +4 more sources
Chemical Engineering Journal AdvancesDrilling fluids exhibit complex rheological behavior due to a non-linear response to shear rate variations and high sensitivity to changes in temperature, time, and pressure conditions. The prediction of drilling fluid rheological behavior is crucial for
Luis H. Quitian-Ardila +7 more
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Rheology of waxy oils: A critical review
Applications in Engineering ScienceWaxy oil is a rheologically complex material presenting shear-rate-dependent viscosity, static and dynamic yield stresses, gel elasto-viscoplasticity, time/deformation-dependent gel structure, and irreversibility.
Diogo E.V. Andrade, Cezar O.R. Negrão
doaj +1 more source
Electroosmotic flow of non‐Newtonian fluids in a constriction microchannel
Electrophoresis, 2018 Insulator‐based dielectrophoresis has to date been almost entirely restricted to Newtonian fluids despite the fact that many of the chemical and biological fluids exhibit non‐Newtonian characteristics. We present herein an experimental study of the fluid
C. Ko +5 more
semanticscholar +1 more source
Laminar flow in three-dimensional square-square expansions [PDF]
, 2011 In this work we investigate the three-dimensional laminar flow of Newtonian and viscoelastic fluids through square–square expansions. The experimental results obtained in this simple geometry provide useful data for benchmarking purposes in complex three-
Alves, M.A. +3 more
core +1 more source
Bio‐Inspired Molecular Events in Poly(Ionic Liquids)
Advanced Functional Materials, EarlyView.Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley +1 more source
Laminar Natural Convection of Newtonian and Non Newtonian Fluids Inside Triangular Enclosure
Al-Khawarizmi Engineering Journal, 2007 In the present work, steady two dimensional laminar natural convection heat transfer of Newtonian and non-Newtonian fluids inside isosceles triangular enclosure has been analyzed numerically for a wide range of the modified Rayleigh numbers of (103 ...
Ala?a Abbas Muhadi
doaj +2 more sources
International Journal of Applied Mechanics and Engineering, 2015 In the paper, currently used methods for modeling the flow of the aqueous humor through eye structures are presented. Then a computational model based on rheological models of Newtonian and non-Newtonian fluids is proposed. The proposed model may be used
M. Dzierka, P. Jurczak
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A continuum approach applied to a strongly confined Lennard-Jones fluid [PDF]
, 2010 Results from molecular dynamics simulations are analyzed with a continuum approach. It is shown that for strongly confined fluids the Navier-Stokes equations for incompressible, Newtonian fluids are not applicable over the whole channel.
Hartkamp, R.M., Luding, S.
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