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Temperature retrieval error in Rayleigh-Brillouin scattering using Tenti’s S6 kinetic model

Wu, Lei and Reese, Jason M. and Zhang, Yonghao (2016) Temperature retrieval error in Rayleigh-Brillouin scattering using Tenti’s S6 kinetic model. In: 30th International Symposium on Rarefied Gas Dynamics. AIP Conference Proceedings, 1786 . AIP Publishing. ISBN 9780735414488

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    Abstract

    The Rayleigh-Brillouin spectrum of light scattered by gas density fluctuations contains information about the gas temperature. This information can be retrieved by comparing experimentally measured spectra with theoretical line shapes determined from the linearized Boltzmann equation. However, the linearized Boltzmann equation is difficult to solve so Tenti's S6 kinetic model has been widely used for several decades because of its simplicity. In this paper, the linearized Boltzmann equation is solved by the efficient fast spectral method, and the temperature retrieval error associated with the Tenti's S6 model is systematically investigated for both spontaneous and coherent Rayleigh-Brillouin scattering, for different gas rarefaction and intermolecular potentials. Our results indicate useful calibrations for laser technologies that use Rayleigh-Brillouin scattering to profile for gas temperatures with high accuracy.

    Author(s):Wu, Lei, Reese, Jason M. and Zhang, Yonghao
    Item type:Book Section
    ID code:58767
    Notes:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Wu, L., Reese, J. M., & Zhang, Y. (2016). Temperature retrieval error in Rayleigh-Brillouin scattering using Tenti’s S6 kinetic model. In A. Ketsdever, & H. Struchtrup (Eds.), 30th International Symposium on Rarefied Gas Dynamics. (Vol. 1786). [040010] (AIP Conference Proceedings). AIP Publishing; and may be found at http://dx.doi.org/10.1063/1.4967548.
    Keywords:Rayleigh-Brillouin spectrum , light scattering, gas density fluctuations, gas temperature, Boltzmann equations, Tenti’s S6 kinetic model, gas rarefaction, visible spectra, atomic line shapes, calibration, Physics, Physics and Astronomy(all)
    Subjects:Science > Physics
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Technology and Innovation Centre > Advanced Engineering and Manufacturing
    Depositing user: Pure Administrator
    Date deposited:23 Nov 2016 11:52
    Last modified:05 Jun 2019 04:23
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/58767
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