Results 21 to 30 of about 9,323 (163)

BEHAVIOR OF NEWTONIAN AND NON-NEWTONIAN FLUIDS IN PUMPING AND TRANSPORT PROCESSES

Studia Universitatis Babes-Bolyai Chemia
The present study investigates the behavior of Newtonian and non-Newtonian fluids in pumping and transport processes, using a laboratory facility. The rheological behavior of the selected fluids were determined by a rotational viscometer with concentric
Andra-Camelia PAVEL, Elena-Mihaela NAGY, Teodor Gabriel FODOREAN, Adina MICLĂUȘ   +3 more
doaj   +1 more source

Review Of Applied Mathematical Models For Describing The Behaviour Of Aqueous Humor In Eye Structures

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
doaj   +1 more source

Numerical simulation of the flow field and heat transfer inside the channel with different dimensions of spindle obstacles in the presence of power-law non-Newtonian fluids [PDF]

مجله مدل سازی در مهندسی, 2000
In this article, the analysis of the flow field and forced convection heat transfer of non-Newtonian fluids inside the channel with spindle-shaped obstacles is discussed. At first, after checking the governing equations and the boundary conditions of the
Danesh Mirzaei, Mostafa Sayah Badkhor, Mohammad Reza Rezaie   +2 more
doaj   +1 more source

Impact of fuzzy volume fraction on unsteady stagnation-point flow and heat transfer of a third-grade fuzzy hybrid nanofluid over a permeable shrinking/stretching sheet

Engineering Applications of Computational Fluid Mechanics
In current work, the unsteady stagnation point’s flow on a special third-grade fuzzy hybrid [Formula: see text] nanofluid (HNF) through a permeable convective shrinking/stretching sheet has been scrutinized.
Imran Siddique, Muhammad Nadeem, Mohammed M. M. Jaradat, Zaher Mundher Yaseen   +3 more
doaj   +1 more source

Concentric cylinder viscometer flows of Herschel-Bulkley fluids

Applied Rheology, 2019
Drilling fluids and well cements are example non-Newtonian fluids that are used for geothermal and petroleum well construction. Measurement of the non-Newtonian fluid viscosities are normally performed using a concentric cylinder Couette geometry, where ...
Skadsem Hans Joakim, Saasen Arild
doaj   +1 more source

Discussion on the Non-Linear Stability of Short Hydrodynamic Bearings by Applying Rabinowitsch Fluid Model

Lubricants
Using the Rabinowitsch fluid model, the effects of dilatant fluids (a non-Newtonian factor less than 0) and pseudo-plastic fluids (a non-Newtonian factor greater than 0) on the non-linear stability of hydrodynamic journal bearings is discussed.
Huaiqing Lu, Chunyan Cheng, Zhuxin Tian
doaj   +1 more source

Knife-bladed vortices in non-Newtonian fluids [PDF]

Papers in Physics, 2016
A tank is filled with a non-Newtonian fluid. We report on the deformation of the free surface resulting from the presence of an underlying vortex. In a tiny range of the experimental parameters, the flow spontaneously loses its initial axi-symmetry ...
Eric Freyssingeas, Damien Frelat, Yvan Dossmann, Jean-Christophe Géminard   +3 more
doaj   +1 more source

Rheological Characterization of Shear-Thinning Fluids with a Novel Viscosity Equation of a Tank-Tube Viscometer

Applied Rheology, 2007
A tank-tube viscometer and its novel viscosity equation were developed to determine flow characteristics of non-Newtonian fluids. The objective of this research is to test capabilities of the tank-tube viscometer and its novel non-Newtonian viscosity ...
Kwon Kyung C., Park YoonKook, Floyd Tamara, Vahdat Nader, Jackson Erica, Jones Paul   +5 more
doaj   +1 more source

Convective Nonlinearity in Non-Newtonian Fluids [PDF]

Physical Review Letters, 2000
In the limit of infinite yield time for stresses, the hydrodynamic equations for viscoelastic, Non-Newtonian liquids such as polymer melts must reduce to that for solids. This piece of information suffices to uniquely determine the nonlinear convective derivative, an ongoing point of contention in the rheology literature.
Pleiner, H., Temmen, H., Liu, M., Brand, H.   +3 more
openaire   +5 more sources

Modeling and prediction of fractional-order MHD hybrid nanofluid flow using CPCF derivatives and LMS-based neural networks

Results in Engineering
This study investigates the unsteady natural convection flows of an inclined magnetohydrodynamic (MHD) Casson hybrid nanofluid over an unbounded vertical plate with fractional thermal transport.
Laiba Ghafoor, Imran Siddique, Muhammad Nadeem, Waleed Mohammed Abdelfattah, Barno Abdullaeva, Admilson T. Franco, Zaher Mundher Yaseen   +6 more
doaj   +1 more source