Results 41 to 50 of about 796,731 (290)
Bulk viscosity dependence on the symmetry energy [PDF]
EPJ Web of ConferencesWe show that for neutrino-transparent npe matter, the equation-of-state dependence of bulk-viscous transport coefficients can be completely determined by the nuclear symmetry energy.
Yang Yumu +3 more
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Stability Analysis of a Self-Gravitating Fluid within EIT Theory
Universe, 2023 In this article, we apply the formalism of (classical) Extended Irreversible Thermodynamics (EIT) to the dynamics of density fluctuations for a self-gravitating fluid in a static Universe, considering only bulk viscosity.
J. Félix Salazar +3 more
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Effects of bulk viscosity on cosmological evolution [PDF]
Il Nuovo Cimento B Series 11, 1994 The effect of bulk viscisity on the evolution of the homogeneous and isotropic cosmological models is considered. Solutions are found, with a barotropic equation of state, and a viscosity coefficient that is proportional to a power of the energy density of the universe.
O, Pimentel L, M, Diaz-Rivera L
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Bulk viscosity driving the acceleration of the Universe [PDF]
General Relativity and Gravitation, 2006 The possibility that the present acceleration of the universe is driven by a kind of viscous fluid is exploited. At background level this model is similar to the generalized Chaplygin gas model (GCGM). But, at perturbative level, the viscous fluid exhibits interesting properties.
Fabris, J. C. +2 more
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Predicting specific gravity and viscosity of biodiesel fuels [PDF]
, 2009 Biodiesel is a promising non-toxic and biodegradable alternative fuel in transport sector. Of all the biodiesel properties, specific gravity and viscosity are the most significant for the effects they have on the utilization of biodiesel fuels in ...
Gu, Fengshou +3 more
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Brazilian Dental Science, 2019 Objective: The objective of this study was to evaluate the compressive strength, flexural strength and flexural modulus of high-viscosity, low-viscosity bulk-fill, and conventional nano-hybrid resin composite materials alone and when covered with nano ...
Aylin Cilingir +5 more
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New Dimensionless Number for the Transition from Viscous to Turbulent Flow
Fluids, 2022 Within the framework of Classical Continuum Thermomechanics, we consider an unsteady isothermal flow of a simple isotropic linear viscous fluid in the liquid state to investigate the transient flow conditions.
Carmine Di Nucci +3 more
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The Universe With Bulk Viscosity [PDF]
Chinese Journal of Astronomy and Astrophysics, 2003 Exact solutions for a model with variable $G$, $Λ$ and bulk viscosity are obtained. Inflationary solutions with constant (de Sitter-type) and variable energy density are found. An expanding anisotropic universe is found to isotropize during its course of expansion but a static universe is not.
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Temperature dependence of bulk viscosity of SU(3)– gluodynamics within lattice simulation
EPJ Web of Conferences, 2018 In this paper we present the results of the measurements of bulk viscosity temperature dependence in SU(3)-gluodynamics by means of lattice simulations.
Astrakhantsev N.Yu. +2 more
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On Effective Degrees of Freedom in the Early Universe
Galaxies, 2016 We explore the effective degrees of freedom in the early Universe, from before the electroweak scale at a few femtoseconds after the Big Bang until the last positrons disappeared a few minutes later.
Lars Husdal
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