Light scattering from extended kinetic models: polyatomic ideal gases

Wilson Marques

Physica A: Statistical Mechanics and its Applications, 1999, vol. 264, issue 1, 40-51

Abstract: We propose an extended kinetic model for polyatomic ideal gases that replaces the Boltzmann collision operator with a single relaxation-time term. The model contains several position and time dependent coefficients that are determined by keeping some of the main properties of the Boltzmann description for polyatomic gases of rough spherical molecules. As an application, we calculate the spectral distribution of light scattered by density fluctuations in polyatomic gases by solving the linearized kinetic model equation as an initial value problem. Numerical results for the light scattering spectrum are derived for methane (CH4) and compared with the predictions of the extended hydrodynamic theory of Hammond and Wiggins which are in complete agreement with experimental data.

Keywords: Kinetic model equation; Light scattering; Polyatomic gases (search for similar items in EconPapers)
Date: 1999
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437198004270
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:264:y:1999:i:1:p:40-51

DOI: 10.1016/S0378-4371(98)00427-0

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().