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Bulk viscosity of molecular fluids [PDF]

open access: yesThe Journal of Chemical Physics, 2018
The bulk viscosity of molecular models of gases and liquids is determined by molecular simulations as a combination of a dilute gas contribution, arising due to the relaxation of internal degrees of freedom, and a configurational contribution, due to the presence of intermolecular interactions.
Frederike Jaeger   +2 more
openaire   +5 more sources

Bulk viscosity in hybrid stars [PDF]

open access: yesPhysical Review D, 2005
8 pages, 7 figures, extended version in print on Phys.Rev ...
DRAGO, Alessandro   +2 more
openaire   +4 more sources

The bulk viscosity of suspensions [PDF]

open access: yesJournal of Rheology, 2007
The bulk viscosity of a suspension is defined analogous to that for a pure fluid as the constant of proportionality relating the deviation of the trace of the macroscopic stress from its equilibrium value to the average rate of expansion. In a suspension the equilibrium macroscopic stress is the sum of the thermodynamic pressure of the fluid and the ...
Manuj Swaroop, John F. Brady
core   +5 more sources

Bulk viscosity of liquid noble gases [PDF]

open access: yesThe Journal of Chemical Physics, 2020
An equation of state for the bulk viscosity of liquid noble gases is proposed. On the basis of dedicated equilibrium molecular dynamics simulations, a multi-mode relaxation ansatz is used to obtain precise bulk viscosity data over a wide range of liquid states.
René Spencer Chatwell, Jadran Vrabec
openaire   +4 more sources

Remarks on Cosmological Bulk Viscosity in Different Epochs [PDF]

open access: yesSymmetry, 2020
The intention of this paper is mainly two-fold. First, we point out a striking numerical agreement between the bulk viscosity in the lepton era calculated by Husdal (2016) and our own calculations of the present-day bulk viscosity when the functional form is ζ ∼ ρ . From a phenomenological point of view, we thus seem to have an ansatz for the
Iver Brevik, Ben David Normann
openaire   +4 more sources

Measurement of Bulk Viscosity of CO2 Based on Spontaneous Rayleigh-Brillouin Scattering

open access: yesIEEE Access, 2020
The spontaneous Rayleigh-Brillouin scattering spectra of CO2 are measured at different temperatures from 278 K to 369 K corresponding to the pressure range over 4-7 bar approximately and compared with the Tenti S6 model.
Jingcheng Shang   +7 more
doaj   +1 more source

Effects of bulk viscosity at freezeout [PDF]

open access: yesPhysical Review C, 2009
11 pages, 12 figures; typos corrected, Fig.
Monnai, Akihiko, Hirano, Tetsufumi
openaire   +2 more sources

Viscous effect in the late time evolution of phantom universe

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We investigate the cosmological implications of a phantom dark energy model with bulk viscosity. We explore this model as a possible way to resolve the big rip singularity problem that plagues the phantom models.
Jing Yang   +3 more
doaj   +1 more source

Bulk viscosity in quasiparticle models [PDF]

open access: yesPhysical Review C, 2009
We discuss transport properties of dynamical fluid composed of quasi-particles whose masses depend on temperature and charge chemical potentials. Based on the relativistic kinetic theory formulated under the relaxation time approximation, we derive a general expression for the bulk viscosity in the quasi-particle medium.
Sasaki, C., Redlich, K.
openaire   +2 more sources

Viscosity and thermal conductivity of nanofluids [PDF]

open access: yes, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009)   +4 more
core   +2 more sources

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