Coherent Rayleigh-Brillouin scattering : influence of the intermolecular potential

Wu, Lei and White, Craig and Scanlon, Thomas and Reese, Jason and Zhang, Yonghao (2014) Coherent Rayleigh-Brillouin scattering : influence of the intermolecular potential. In: 29th International Symposium on Rarefied Gas Dynamics, 2014-07-13 - 2014-07-18, Hilton Xi’an Hotel.

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    Abstract

    The spectrum of the coherent Rayleigh-Brillouin scattering (CRBS) of light by a rarefied gas is obtained by solving the Boltzmann equation numerically using the fast spectral method. The influence of the intermolecular potential on the CRBS spectrum is investigated and the accuracy of the prevailing Tenti’s s6 kinetic model is evaluated. Our numerical results show that i) the intermolecular potential has a great influence on CRBS spectrum when the Knudsen number is between 0.05 and 1 and ii) Tenti’s s6 kinetic model can only predict the line shape accurately for Maxwell gases at small Knudsen numbers.

    Author(s):Wu, Lei ORCID logoORCID: https://orcid.org/0000-0002-6435-5041, White, Craig, Scanlon, Thomas ORCID logoORCID: https://orcid.org/0000-0002-6819-9277, Reese, Jason ORCID logoORCID: https://orcid.org/0000-0001-5188-1627 and Zhang, Yonghao ORCID logoORCID: https://orcid.org/0000-0002-0683-7050
    Item type:Conference or Workshop Item(Paper)
    ID code:51177
    Keywords:coherent Rayleigh-Brillouin scattering, Boltzmann equation, fast spectral method, Mechanical engineering and machinery, Plasma physics. Ionized gases, Mechanical Engineering, Atomic and Molecular Physics, and Optics
    Subjects:Technology > Mechanical engineering and machinery
    Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Technology and Innovation Centre > Advanced Engineering and Manufacturing
    Depositing user: Pure Administrator
    Date deposited:20 Jan 2015 15:22
    Last modified:29 Oct 2019 01:14
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/51177
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