Results 31 to 40 of about 492,369 (336)
The Universe With Bulk Viscosity [PDF]
, 1998 Exact solutions for a model with variable $G$, $\Lambda$ and bulk viscosity are obtained. Inflationary solutions with constant (de Sitter-type) and variable energy density are found.
Arbab A. I. +5 more
core +4 more sources
East European Journal of Physics, 2023 The mathematical model to inspect the effects of changeable thermo-physical properties such as thermal conduction, slip effects and viscosity on Maxwellian nanofluid is proposed.
Debozani Borgohain
doaj +1 more source
On variable viscosity and enhanced dissipation [PDF]
arXiv, 2021 In this article we consider the 2D Navier-Stokes equations with variable viscosity depending on the vertical position. As our main result we establish linear enhanced dissipation near the non-affine stationary states replacing Couette flow. Moreover it turns out that the shear flow overcompensates for weakening viscosity: decreasing viscosity leads to ...
arxiv
Nanomanufacturing, 2023 In the manufacturing sector, transport phenomena near the stagnation region are frequent, particularly in the polymer and extrusion processes, which require continuous improvement to raise the process’s quality standards.
Jagan Kandasamy +2 more
doaj +1 more source
Balanced-Viscosity solutions for multi-rate systems [PDF]
, 2014 Several mechanical systems are modeled by the static momentum balance for the displacement $u$ coupled with a rate-independent flow rule for some internal variable $z$. We consider a class of abstract systems of ODEs which have the same structure, albeit
Mielke, Alexander +2 more
core +3 more sources
Crystals, 2021 The present article investigates heat transfer and pseudoplastic nanomaterial liquid flow over a vertical thin cylinder. The Buongiorno model is used for this analysis.
Azad Hussain +6 more
doaj +1 more source
Error assessment of lattice Boltzmann equation method for variable viscosity flows [PDF]
, 2007 In lattice Boltzmann simulations, variable viscosity can complicate the truncation error analysis and create additional interaction between the truncation error and the boundary condition error. In order to address this issue, two boundary conditions for
Bouzidi +26 more
core +2 more sources
Variable viscosity and thermophoresis effects on Darcy mixed convective heat and mass transfer past a porous wedge in the presence of chemical reaction [PDF]
Theoretical and Applied Mechanics, 2009 An analysis is presented to investigate the effect of thermophoresis particle deposition and variable viscosity on Darcy mixed convective heat and mass transfer of a viscous, incompressible fluid past a porous wedge in the presence of chemical reaction ...
Muhaimin I. +2 more
doaj +1 more source
Applied Sciences, 2022 Cross nanofluid possesses an extraordinary quality among the various fluidic models to explore the key characteristics of flowing fluid during very low and very high shear rates and its viscosity models depend upon shear rate.
Adil Darvesh +9 more
doaj +1 more source
Numerical modeling and calculation of heat transfer between heat carriers in heat exchangers [PDF]
Қарағанды университетінің хабаршысы. Физика сериясы, 2023 Heating of oil and oil products is widely used to reduce energy loss during transportation. An approach is being developed to determine the effective length of the heat exchanger and the temperature of the cold heat carrier at its outlet in the ...
D.Y. Kurmanova +3 more
doaj +1 more source