Results 1 to 10 of about 413 (92)
Kolmogorov equations for randomly perturbed generalized Newtonian fluids [PDF]
Mathematische Nachrichten, 2014 We consider incompressible generalized Newtonian fluids in two space dimensions perturbed by an additive Gaussian noise. The velocity field of such a fluid obeys a stochastic partial differential equation with fully nonlinear drift due to the dependence of viscosity on the shear rate.
Martin Sauer
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Uncertainty quantification for the squeeze flow of generalized Newtonian fluids
Journal of Non-Newtonian Fluid Mechanics, 2023 The calibration of rheological parameters in the modeling of complex flows of non-Newtonian fluids can be a daunting task. In this paper we demonstrate how the framework of Uncertainty Quantification (UQ) can be used to improve the predictive capabilities of rheological models in such flow scenarios. For this demonstration, we consider the squeeze flow
Aricia Rinkens +2 more
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Time-Periodic Weak Solutions to Incompressible Generalized Newtonian Fluids [PDF]
Journal of Mathematical Fluid Mechanics, 2021 AbstractIn this study we are interested in the Navier–Stokes-like system for generalized viscous fluids whose viscosity has a power-structure with exponentq. We develop an existence theory of time-periodic three-dimensional flows.
Anna Abbatiello
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Similarity solutions to the power-law generalized Newtonian fluid
Journal of Computational and Applied Mathematics, 2007 AbstractThe authors of this paper study a second-order nonlinear parabolic equation with a background describing the motion of the power-law generalized Newtonian fluid. The existence of similarity solutions is obtained and the asymptotic behavior of the solution is studied.
Wenjie Gao, Junyu Wang
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Steady and unsteady laminar flows of Newtonian and generalized Newtonian fluids in a planar T‐junction [PDF]
International Journal for Numerical Methods in Fluids, 2007 AbstractAn investigation of laminar steady and unsteady flows in a two‐dimensional T‐junction was carried out for Newtonian and a non‐Newtonian fluid analogue to blood. The flow conditions considered are of relevance to hemodynamical applications and the localization of coronary diseases, and the main objective was to quantify the accuracy of the ...
Amílcar I. P. Miranda +2 more
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An analytical study on the entropy generation in flow of a generalized Newtonian fluid
Thermal Science, 2019 In this study, an analytical investigation on pressure driven flow of Powell-Eyring fluid is conducted to understand the irreversibilities due to heat transfer and viscous heating. The flow between infinitely long parallel plates is considered as fully developed and laminar with constant properties and subjected to symmetrical heat fluxes from solid ...
Yiğit Aksoy +4 more
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Circular hydraulic jump in generalized-Newtonian fluids
, 2008 4 pages, 3 figures, added references, corrected ...
Ashutosh Rai +2 more
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Generalized newtonian fluid simulations [PDF]
2013 Fourth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG), 2013 We present an approach to simulate both Newtonian and generalized Newtonian fluids using Lattice Boltzmann Method. The focus has been on accurately modelling non-Newtonian fluids at the micro channel level from biological fluids in the past. Our method can model macroscopic behaviour of such fluids by simulating the variation of properties such as ...
P. J. Narayanan, Nitish Tripathi
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Compressible generalized Newtonian fluids [PDF]
Zeitschrift für angewandte Mathematik und Physik, 2010 We systematically derive models that would be suitable to describe flows of compressible fluids with the material moduli depending on the symmetric part of the velocity gradient and temperature, within the context of a thermodynamic framework that has been quite successful in developing models to describe the response of bodies that produce entropy ...
Kumbakonam R. Rajagopal, Josef Málek
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Rivulet flow of generalized Newtonian fluids [PDF]
Physical Review Fluids, 2018 Steady unidirectional gravity-driven flow of a uniform thin rivulet (i.e. a rivulet with small transverse aspect ratio) of a generalised Newtonian fluid down a vertical planar substrate is considered. The parametric solution for any generalised Newtonian fluid whose viscosity can be expressed as a function of the shear rate, and the explicit solution ...
Al Mukahal, F. H. H. +2 more
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