Results 31 to 40 of about 131,988 (295)

Non-Darcian Mixed Convection Flow in Vertical Composite Channels with Hybrid Boundary Conditions [PDF]

open access: yesJournal of Petroleum Science and Technology, 2011
In this article, the effects of viscous dissipation and inertial force on the velocity and temperature distributions of the mixed convection laminar flow in a vertical channel partly filled with a saturated porous medium have been studied. In this regard,
M. Hajipour, A. Molaei Dehkordi
doaj   +1 more source

Stability analysis for the background equations for inflation with dissipation and in a viscous radiation bath [PDF]

open access: yes, 2012
The effects of bulk viscosity are examined for inflationary dynamics in which dissipation and thermalization are present. A complete stability analysis is done for the background inflaton evolution equations, which includes both inflaton dissipation and ...
A. Berera   +24 more
core   +3 more sources

Puncture of a Viscous Liquid Film Due to Droplet Falling

open access: yesFluids, 2022
Droplet impact may rupture a liquid film on a non-wettable surface. The formation of a stable dry spot has only been studied in the inviscid case. Here, we examine the break-up of viscous films, and demonstrate the importance and role of the viscous ...
Viktor G. Grishaev   +3 more
doaj   +1 more source

Anisotropic viscous dissipation in compressible magnetic X-points [PDF]

open access: yes, 2008
Context: Visco-resistive damping in line-tied magnetic X-points is examined. Aims: The goal is to determine whether fast, Alfvénic energy dissipation is possible for X-point disturbances damped by the plasma resistivity and non-isotropic viscosity ...
Craig, Ian J.D.
core   +2 more sources

Viscous Dissipation in One-Dimensional Quantum Liquids

open access: yesPhysical Review Letters, 2017
We develop a theory of viscous dissipation in one-dimensional single-component quantum liquids at low temperatures. Such liquids are characterized by a single viscosity coefficient, the bulk viscosity. We show that for a generic interaction between the constituent particles this viscosity diverges in the zero-temperature limit.
Matveev, K. A., Pustilnik, M.
openaire   +4 more sources

Damping of quasi-2D internal wave attractors by rigid-wall friction

open access: yes, 2017
The reflection of internal gravity waves at sloping boundaries leads to focusing or defocusing. In closed domains, focusing typically dominates and projects the wave energy onto 'wave attractors'.
Beckebanze, F.   +3 more
core   +1 more source

Kinetic Energy Transport in Rayleigh--B\'enard Convection

open access: yes, 2014
The kinetic energy balance in Rayleigh--B\'{e}nard convection is investigated for the Prandtl number range $0.01\le Pr \le 150$ and for fixed Rayleigh number $Ra=5\cdot10^{6}$.
Hansen, Ulli   +4 more
core   +1 more source

Resonant Microcantilevers for the Determination of the Loss Modulus of Thin Polymer Films [PDF]

open access: yes, 2011
The increasing interest in polymer materials creates the need for accurate tools to characterize their mechanical properties. Due to energy dissipation in polymers during deformation, these materials exhibit viscoelastic behavior.
Ayela, Cedric   +3 more
core   +4 more sources

Entropy generation analysis for viscoelastic MHD flow over a stretching sheet embedded in a porous medium

open access: yesAin Shams Engineering Journal, 2017
In this paper it is intended to analyse entropy generation by applying second law of thermodynamics to magnetohydrodynamic flow, heat and mass transfer of an electrically conducting viscoelastic liquid (Walters B′) past on a stretching surface, taking ...
S. Baag   +3 more
doaj   +1 more source

AGN heating and dissipative processes in galaxy clusters

open access: yes, 2005
Recent X-ray observations reveal growing evidence for heating by active galactic nuclei (AGN) in clusters and groups of galaxies. AGN outflows play a crucial role in explaining the riddle of cooling flows and the entropy problem in clusters.
Braginskii S. L.   +6 more
core   +1 more source

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