Rheological Study of Two-Dimensional Very Anisometric Colloidal Particle Suspensions: From Shear-Induced Orientation to Viscous Dissipation

Langmuir ◽  
2013 ◽  
Vol 29 (17) ◽  
pp. 5315-5324 ◽  
Author(s):  
A. M. Philippe ◽  
C. Baravian ◽  
V. Bezuglyy ◽  
J. R. Angilella ◽  
F. Meneau ◽  
...  
Keyword(s):  
Viscous Dissipation ◽  
Colloidal Particle ◽  
Two Dimensional ◽  
Particle Suspensions ◽  
Rheological Study

Two‐dimensional Darcy–Forchheimer flow of a dusty hybrid nanofluid over a stretching sheet with viscous dissipation

Heat Transfer ◽  
2021 ◽  
Author(s):  
Hogarehally Basavarajappa Mallikarjuna ◽  
Tigalappa Nirmala ◽  
Ramanahalli Jayadevamurthy Punith Gowda ◽  
Radhika Manghat ◽  
Ravikumar Shashikala Varun Kumar
Keyword(s):  
Viscous Dissipation ◽  
Stretching Sheet ◽  
Hybrid Nanofluid ◽  
Two Dimensional ◽  
Forchheimer Flow

Slot coating flows of non-colloidal particle suspensions

AIChE Journal ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 1122-1131 ◽  
Author(s):  
Diego M. Campana ◽  
Luis D. Valdez Silva ◽  
Marcio S. Carvalho
Keyword(s):  
Colloidal Particle ◽  
Particle Suspensions ◽  
Coating Flows ◽  
Slot Coating

Rheological study of magnetic particle suspensions

1997 ◽  
Vol 49 (3) ◽  
pp. 225-228 ◽  
Author(s):  
T.M. Kwon ◽  
M.S. John ◽  
H.J. Choi
Keyword(s):  
Magnetic Particle ◽  
Particle Suspensions ◽  
Rheological Study

scholarly journals Viscous dissipation by tidally forced inertial modes in a rotating spherical shell

2010 ◽  
Vol 643 ◽  
pp. 363-394 ◽  
Author(s):  
M. RIEUTORD ◽  
L. VALDETTARO
Keyword(s):  
Spherical Shell ◽  
Shear Layer ◽  
Viscous Dissipation ◽  
Inner Core ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Two Dimensional Model ◽  
Critical Latitude

We investigate the properties of forced inertial modes of a rotating fluid inside a spherical shell. Our forcing is tidal like, but its main property is that it is on the large scales. By numerically solving the linear equations of this problem, including viscosity, we first confirm some analytical results obtained on a two-dimensional model by Ogilvie (J. Fluid Mech., vol. 543, 2005, p. 19); some additional properties of this model are uncovered like the existence of narrow resonances associated with periodic orbits of characteristics. We also note that as the frequency of the forcing varies, the dissipation varies drastically if the Ekman number E is low (as is usually the case). We then investigate the three-dimensional case and compare the results to the foregoing model. The three-dimensional solutions show, like their two-dimensional counterpart, a spiky dissipation curve when the frequency of the forcing is varied; they also display small frequency intervals where the viscous dissipation is independent of viscosity. However, we show that the response of the fluid in these frequency intervals is crucially dominated by the shear layer that is emitted at the critical latitude on the inner sphere. The asymptotic regime, where the dissipation is independent of the viscosity, is reached when an attractor has been excited by this shear layer. This property is not shared by the two-dimensional model where shear layers around attractors are independent of those emitted at the critical latitude. Finally, resonances of the three-dimensional model correspond to some selected least damped eigenmodes. Unlike their two-dimensional counter parts these modes are not associated with simple attractors; instead, they show up in frequency intervals with weakly contracting webs of characteristics. Besides, we show that the inner core is negligible when its relative radius is less than the critical value 0.4E1/5. For these spherical shells, the full sphere solutions give a good approximation of the flows.

Viscous Dissipation and Variable Properties Effect on Two Dimensional Conjugate Heat Transfer of Nanofluids in Microchannels

2011 ◽  
Author(s):  
A. Ramiar ◽  
A. A. Ranjbar
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Nusselt Number ◽  
Viscous Dissipation ◽  
Conjugate Heat Transfer ◽  
Energy Equation ◽  
Critical Reynolds Number ◽  
Two Dimensional ◽  
Variable Properties ◽  
Enhance Heat Transfer

Laminar two dimensional forced convective heat transfer of Al2O3–water nanofluid in a horizontal microchannel has been studied numerically, considering axial conduction, viscous dissipation and variable properties effects. The existing criteria in the literature for considering viscous dissipation in energy equation are compared for different cases and the most proper one is applied for the rest of the paper. The results showed that nanoparticles enhance heat transfer characteristics of the channel and inversely, viscous dissipation causes the Nusselt number and friction factor to decrease. The viscous dissipation effect may be emphasized by increasing Reynolds number and decreased by raising the exerted heat flux. Also, it was found that there is a critical Reynolds number below which the average Nusselt number of the nanofluid changes abnormally with Reynolds number as a result of variable properties effect.

The Modeling of Viscous Dissipation in a Saturated Porous Medium

2007 ◽  
Vol 129 (10) ◽  
pp. 1459-1463 ◽  
Author(s):  
D. A. Nield
Keyword(s):  
Porous Medium ◽  
Natural Convection ◽  
Forced Convection ◽  
Viscous Dissipation ◽  
Critical Review ◽  
Saturated Porous Medium ◽  
Dissipation Function ◽  
Two Dimensional ◽  
Bottom Heating ◽  
Work Done

A critical review is made of recent studies of the modeling of viscous dissipation in a saturated porous medium, with applications to either forced convection or natural convection. Alternative forms of the viscous dissipation function are discussed. Limitations to the concept of fully developed convection are noted. Special attention is focused on the roles of viscous dissipation and work done by pressure forces (flow work) in natural convection in a two-dimensional box with either lateral or bottom heating.

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