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Measurement of the Adiabatic Wall Temperature of a Flat Plate in a Supersonic Air-Droplet Flow

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Abstract—

The results of the measurement of the surface temperature of a flat plate in a supersonic air-droplet flow are presented. The plate made of duralumin was mounted vertically in the working channel of an aerodynamic setup. The droplets of a liquid (distilled water) were pulverized into an air flow in a plenum chamber through centrifugal atomizers. The mass concentration of the liquid was about 0.36 and 0.27%, the mean droplet diameter according to Sauter was about 110 μm, and the freestream Mach number M = 2.5 and 3.0. The surface temperature was measured by an IR imager. The measured plate surface temperatures for the case of single-phase air flow (without droplets) were compared with those for the air-droplet flow at the same parameters (with respect to the air) in the plenum chamber. To intensify the droplet sedimentation on the plate a shock generator in the form of a wedge was mounted vertically ahead of the plate.

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Funding

The study was carried out within the framework of the State theme АААА-А16-116021110200-5 of Institute of Mechanics of Moscow State University with the partial support of the Russian Foundation for Basic Research (project 17-08-00130).

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Authors and Affiliations

  1. Institute of Mechanics, Moscow State University, 119192, Moscow, Russia

    Yu. A. Vinogradov, A. G. Zditovets, N. A. Kiselev & S. S. Popovich

  2. Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya ul. 13, bd. 2, 125412, Moscow, Russia

    N. V. Medvetskaya

Authors
  1. Yu. A. Vinogradov
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  2. A. G. Zditovets
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  3. N. A. Kiselev
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  4. N. V. Medvetskaya
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  5. S. S. Popovich
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Corresponding author

Correspondence to S. S. Popovich.

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The Authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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Translated by M. Lebedev

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Vinogradov, Y.A., Zditovets, A.G., Kiselev, N.A. et al. Measurement of the Adiabatic Wall Temperature of a Flat Plate in a Supersonic Air-Droplet Flow. Fluid Dyn 55, 701–707 (2020). https://doi.org/10.1134/S0015462820050146

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  • DOI: https://doi.org/10.1134/S0015462820050146

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