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.

ORCID iDs

Wu, Lei ORCID: https://orcid.org/0000-0002-6435-5041

Scanlon, Thomas ORCID: https://orcid.org/0000-0002-6819-9277

Reese, Jason ORCID: https://orcid.org/0000-0001-5188-1627

Zhang, Yonghao ORCID: https://orcid.org/0000-0002-0683-7050

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	51177
  Dates:	Date Event 13 July 2014 Published 1 April 2014 Accepted
  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:	17 Dec 2021 01:59
  Related URLs:	Event
  URI:	https://strathprints.strath.ac.uk/id/eprint/51177