Rayleigh-Brillouin scattering spectra of SF6 are modeled at room temperature in the pressure range [0.2-5] bar and compared to recent experimental measurements (Wang et al., 2017). It is shown that lineshape models that account for density-dependent corrections to the thermodynamic properties provide substantially better agreement than the models assuming an ideal gas model. For intermediate pressures, where a hydrodynamic description of the spectra fails due to kinetic effects, the Enskog-Vlasov kinetic model is shown to reproduce experimental data with good accuracy both at low and high pressure.
Dense gas effects in the Rayleigh-Brillouin scattering spectra of SF6
Bruno, D.; Frezzotti, A.
Journal:
Chemical physics letters (Print) 731 pp. 136595-1 - 136595-9
Year:
2019
ISTP Authors: Domenico Bruno
Keywords: DSMC simulation, Enskog-Vlason kinetic equation, Rayleigh-Brillouin scattering, SF6 gas
Research Activitie: JOURNAL ARTICLES
Related products
-
Monthly notices of the Royal Astronomical Society (Online) 503 (4), pp. 4815 - 4827 Year: 2021 DOI: 10.1093/mnras/stab319
Comparing turbulence in a Kelvin-Helmholtz instability region across the terrestrial magnetopause
Quijia, P.; Fraternale, F.; Stawarz, J.E.; Vasconez, C.L.; Perri, S.; Marino, R.; Yordanova, E.; Sorriso-Valvo, L.
-
Chemical physics letters (Print) 773 pp. 138603-1 - 138603-6 Year: 2021 DOI: 10.1016/j.cplett.2021.138603
Dispersion energy effects on oxygen interaction with cesiated molybdenum surfaces
Sanna N.; Rutigliano M.; Palma A.
-
Journal of plasma physics (Print) 87 (1), pp. 825870101-1 - 825870101-20 Year: 2021 DOI: 10.1017/S0022377820001567
Local and global properties of energy transfer in models of plasma turbulence
Vasconez, Christian L.; Perrone, D.; Marino, R.; Laveder, D.; Valentini, F.; Servidio, S.; Mininni, P.; Sorriso-Valvo, L.
-
Physical review. E (Print) 104 (2), pp. 025201-1 - 025201-13 Year: 2021 DOI: 10.1103/PhysRevE.104.025201
Transition to turbulence in a five-mode Galerkin truncation of two-dimensional magnetohydrodynamics
Carbone, Francesco; Telloni, Daniele; Zank, Gary; Sorriso-Valvo, Luca
English
Italiano