نتایج جستجو برای: non newtonian fluid

تعداد نتایج: 1518038  

Journal: :Transactions of the Japan Society of Mechanical Engineers 1968

Journal: :Journal of Mathematical Analysis and Applications 1977

Journal: :Proceedings of the Indian Academy of Sciences - Section A 1961

Journal: :Journal of Physics of the Earth 1978

Journal: :Communications in Nonlinear Science and Numerical Simulation 2015

2010
Azuraien Jaafar Marcel P. Escudier Robert J. Poole

In this study the pressure-drop, mean and rms axial velocity data are measured using a differential pressure transducer and a laser Doppler anemometer for the flow of Newtonian and non-Newtonian fluids in a concentric annular pipe (radius ratio =0.5) at various Reynolds numbers encompassing the laminar, transitional and turbulent regimes. Three different fluids are utilized; a semi-rigid shear-...

2011
C. O. Ng

This paper investigates the influence of the effect of viscous dissipation and radiation on natural convection heat transfer from vertical flat plate in a non-Darcy porous media saturated with non-Newtonian fluid of variable viscosity. The wall and the ambient medium are maintained at constant but different levels of temperature. The Ostwald–de Waele power law model is used to characterize the ...

Journal: :iranian journal of science and technology (sciences) 2015
m. a. javed

in this paper, the flow of couple stress fluid is investigated in a helical screw rheometer (hsr). by unwrapping the channel, lands, and the outside rotating barrel, the geometry of hsr is approximated as a shallow infinite channel. both one- and two-dimensional analysis of the problem is presented using rectangular coordinates. in either case an exact solution of the flow problem is presented ...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
milad tajik jamal-abad maziar dehghan seyfolah saedodin mohammad sadegh valipour amirhossein zamzamian

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 were used to evaluatethe power-law and consistency index. results indicated that the nanofluid viscosity decreasedby increasing the concentrat...

2007
Eric Lauga

Flagella beating in complex fluids are significantly influenced by viscoelastic stresses. Relevant examples include the ciliary transport of respiratory airway mucus and the motion of spermatozoa in the mucus-filled female reproductive tract. We consider the simplest model of such propulsion and transport in a complex fluid, a waving sheet of small amplitude free to move in a polymeric fluid wi...

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