Results 1 to 10 of about 49,979 (160)

The effect of bulk viscosity on single bubble dynamics and sonoluminescence [PDF]

open access: yesUltrasonics Sonochemistry, 2023
In our previous paper, we derived a new single bubble model including the effect of bulk viscosity. To confront it to experiments, single bubble dynamics was measured here in 30% (v/v) glycerol-water mixture under different acoustic amplitudes and ...
Yang Shen   +3 more
doaj   +4 more sources

Bulk Viscosity of Dilute Gases and Their Mixtures

open access: yesFluids, 2023
In this work, we use the Green–Kubo method to study the bulk viscosity of various dilute gases and their mixtures. First, we study the effects of the atomic mass on the bulk viscosity of dilute diatomic gas by estimating the bulk viscosity of four ...
Bhanuday Sharma   +2 more
doaj   +5 more sources

Probing bulk viscosity in relativistic flows. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2020
We derive an analytical connection between kinetic relaxation rate and bulk viscosity of a relativistic fluid in d spatial dimensions, all the way from the ultra-relativistic down to the near non-relativistic regime. Our derivation is based on both Chapman–Enskog asymptotic expansion and Grad’
Gabbana A   +3 more
europepmc   +6 more sources

Investigating the impact of shear and bulk viscosity on the damping of confined acoustic modes in phononic crystal sensors [PDF]

open access: yesScientific Reports
Phononic crystal (PnC) sensors are recognized for their capability to control acoustic wave propagation through periodic structures, presenting considerable potential across various applications.
Hussein A. Elsayed   +6 more
doaj   +2 more sources

General Bulk-Viscous Solutions and Estimates of Bulk Viscosity in the Cosmic Fluid

open access: yesEntropy, 2016
We derive a general formalism for bulk viscous solutions of the energy-conservation equation for ρ ( a , ζ ) , both for a single-component and a multicomponent fluid in the Friedmann universe.
Ben David Normann, Iver Brevik
doaj   +3 more sources

Interfacial gap formation of class II composite restorations with proximal box elevation using bulk-fill materials: a micro-CT study [PDF]

open access: yesScientific Reports
To evaluate the effect of proximal box elevation (PBE) using different bulk-fill resin composites on interfacial gap formation of Class II direct restorations at the cervical region using micro-computed tomography (micro-CT).
Ceren Deger   +3 more
doaj   +2 more sources

Effect of thermocycling on internal microhardness of high and low viscosity bulk fill composite resins in class I cavities [PDF]

open access: yesRGO: Revista Gaúcha de Odontologia, 2023
Objective: To evaluate the effect of thermocycling on the Knoop internal microhardness of high- and low viscosity bulk fill resins applied in Class I cavities.
Sâmara Luciana de Andrade LIMA   +5 more
doaj   +1 more source

Continuum Models for Bulk Viscosity and Relaxation in Polyatomic Gases

open access: yesFluids, 2023
Bulk viscosity and acoustic wave propagation in polyatomic gases and their mixtures are studied in the frame of one-temperature and multi-temperature continuum models developed using the generalized Chapman–Enskog method.
Elena Kustova   +4 more
doaj   +1 more source

Radiative bulk viscosity [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
Viscous resistance to changes in the volume of a gas arises when different degrees of freedom have different relaxation times. Collisions tend to oppose the resulting departures from equilibrium and, in so doing, generate entropy. Even for a classical gas of hard spheres, when the mean free paths or mean flight times of constituent particles are long ...
Chen, X., Spiegel, E. A.
openaire   +2 more sources

Internal Energy Relaxation Processes and Bulk Viscosities in Fluids

open access: yesFluids, 2022
Internal energy relaxation processes in fluid models derived from the kinetic theory are revisited, as are related bulk viscosity coefficients. The apparition of bulk viscosity coefficients in relaxation regimes and the links with equilibrium one ...
Domenico Bruno, Vincent Giovangigli
doaj   +1 more source

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