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Interferometric Data Analysis of Convective Heat Transfer under a Downward-Facing Horizontal Circular Plate

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Interferometric data are analyzed to investigate heat transfer under a heated horizontal circular plate suspended in air at ambient temperature. To achieve an accurate reconstruction of the axisymmetric temperature field, the two-dimensional continuous wavelet transform and the Chebyshev wavelet method are used in the fringe shift process and in the Abel inversion, respectively. The results obtained are evidence for good agreement with the Nusselt number correlation given in the previous work. For the investigated Rayleigh numbers, the medium is axisymmetric and stratified in the vicinity of the plate. The accuracy of interferometric techniques is very sensitive to the methods used in the post-processing of the interferometric data.

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Authors and Affiliations

  1. Laboratory of Physics and Chemistry, Qualifying High School Youssef Ben Tachafine, 40000, Marrakesh, Morocco

    A. Ait Haj Said

  2. Qualifying High School Koutoubia, 40000, Marrakesh, Morocco

    M. Elfagrich

  3. Faculty of Sciences Semlalia, Laboratory of Fluid Mechanics and Energetics (LMFE), Unit Affiliated to CNRST (URL-CNRTST No 16), Department of Physics, Cadi Ayyad University, BP 2390, Marrakesh, Morocco

    Y. Dahani

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  1. A. Ait Haj Said
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  2. M. Elfagrich
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  3. Y. Dahani
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Correspondence to A. Ait Haj Said.

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Published in Inzhenerno-Fizicheskii Zhurnal, Vol. 96, No. 3, pp. 639–651, May–June, 2023.

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Said, A.A.H., Elfagrich, M. & Dahani, Y. Interferometric Data Analysis of Convective Heat Transfer under a Downward-Facing Horizontal Circular Plate. J Eng Phys Thermophy 96, 636–648 (2023). https://doi.org/10.1007/s10891-023-02725-w

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  • DOI: https://doi.org/10.1007/s10891-023-02725-w

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