Results 41 to 50 of about 51,744 (287)
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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Universe models with negative bulk viscosity [PDF]
Astrophysics and Space Science, 2013 The concept of negative temperatures has occasionally been used in connection with quantum systems. A recent example of this sort is reported in the paper of S. Braun et al. [Science 339,52 (2013)], where an attractively interacting ensemble of ultracold atoms is investigated experimentally and found to correspond to a negative-temperature system since
Brevik, Iver Håkon, Grøn, Øyvind
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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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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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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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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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Observational Constraints and Some Toy Models in f(Q) Gravity with Bulk Viscous Fluid
Universe, 2022 The standard formulation of general relativity fails to describe some recent interests in the universe. It impels us to go beyond the standard formulation of gravity.
Sanjay Mandal +2 more
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Continuum perspective of bulk viscosity in compressible fluids
, 2017 Kinetic theory and acoustic measurements have proven that the hulk viscosity associated with the expansion or compression effect cannot be ignored in compressible fluids except for monatomic gases.
姜宗林 +3 more
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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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