Results 31 to 40 of about 646,059 (301)

An experimental investigation of rheological characteristics of non- Newtonian nanofluids [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2014
Rheological characteristics of Al2O3, CuO and TiO2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. Constitutive relations for non-Newtonian fluid were discussedbased on the power-law model. Measured viscosities of each nanofluid
Milad Tajik Jamal-Abad   +4 more
doaj   +1 more source

Phantom phase power-law solution in $f(G)$ gravity

open access: yes, 2011
Power-law solutions for $f(G)$ gravity coupled with perfect fluid have been studied for spatially flat universe. It is shown that despite the matter dominated and accelerating power-law solutions, the power-law solution exists for an special form of $f(G)
A. R. Rastkar   +64 more
core   +1 more source

Stability Analysis of Thin Power-Law Fluid Film Flowing down a Moving Plane in a Vertical Direction

open access: yesFluids, 2022
This paper analyses the stability of thin power-law fluid flowing down a moving plane in a vertical direction by using the long-wave perturbation method. Linear and nonlinear stability are discussed.
Wu-Man Liu, Cha’o-Kuang Chen
doaj   +1 more source

On the existence of classical solution to the steady flows of generalized Newtonian fluid with concentration dependent power-law index

open access: yes, 2018
Steady flows of an incompressible homogeneous chemically reacting fluid are described by a coupled system, consisting of the generalized Navier--Stokes equations and convection - diffusion equation with diffusivity dependent on the concentration and the ...
Abbatiello, Anna   +2 more
core   +1 more source

On Hele–Shaw flow of power-law fluids

open access: yesEuropean Journal of Applied Mathematics, 1992
This paper reviews the governing equations for a plane Hele–Shaw flow of a power-law fluid. We find two closely related partial differential equations, one for the pressure and one for the stream function. Some mathematical results for these equations are presented, in particular some exact solutions and a representation theorem.
Aronsson, Gunnar, Janfalk, Ulf
openaire   +1 more source

Numerical Analysis of Non-Newtonian Fluid Effects on the Equilibrium Position of a Suspended Particle and Relative Viscosity in Two-Dimensional Flow

open access: yesFluids
A solvent in suspension often has non-Newtonian properties. To date, in order to determine these properties, many constitutive equations have been suggested. In particular, power-law fluid, which describes both dilatant and pseudoplastic fluids, has been
Keiya Tomioka, Tomohiro Fukui
doaj   +1 more source

Slip Backflow of Polymers in Elastic Fractures for Subsurface Heat Recovery

open access: yesEnergies, 2023
This research delves into the complexities of backflow phenomena in finite-length and flat-walled fractures with elastic walls, specifically focusing on power-law fluids, whose shear-thinning behavior distinguishes them from Newtonian fluids.
Alessandro Lenci   +3 more
doaj   +1 more source

Temperature dependence of the Power law exponent of relaxation in a supercooled Liquid

open access: yes, 2001
The dynamics of Lennard-Jones fluid is studied through extended mode coupling theory (MCT) with the inclusion of the slow mode of defect density. Inclusion of defect density facilitates the liquid like state for temperatures much lower than predicted ...
Das, Shankar P., Srivastava, Sudha
core   +2 more sources

Simplified Pressure Drop Model for Laminar Helical Flow of Power Law Fluid

open access: yesShiyou jixie, 2020
The theoretical models for predicting the pressure drop of the laminar helical flow of power-law fluids require tedious and complicated numerical calculations, which are difficult to directly apply to the field.
Zhai Kejun, Yu Yang, He Lang, Tang Ming
doaj  

Speed of Sound in the Mass Varying Neutrinos Scenario

open access: yes, 2006
We discuss about the speed of sound squared in the Mass Varying Neutrinos scenario (MaVaNs). Recently, it was argued that the MaVaNs has a catastrophic instability which is the emergence of an imaginary speed of sound at the non-relativistic limit of ...
A.W. Brookfield   +11 more
core   +3 more sources

Home - About - Disclaimer - Privacy