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Spectral peculiarities of turbulent pulsations of submerged water jets

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Abstract

The spectra of turbulent jet temperature pulsations at 1–40 Hz frequencies have been experimentally studied based on high-speed thermography of the water boundary layer: the region where an impact jet interacts with a surface transparent to IR radiation, as well as the near-wall region where two submerged jets interact in a disc-shaped tee-joint. It has been indicated that the slopes of the spectra of impact submerged jet turbulent pulsations are close to–5/3 and a double inertial interval exists in a quasi-2D turbulent flow that is formed when two jets mix.

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Authors and Affiliations

  1. Moscow State University, Moscow, 119899, Russia

    I. A. Znamenskaya, E. Yu. Koroteeva, A. M. Novinskaya & N. N. Sysoev

Authors
  1. I. A. Znamenskaya
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  2. E. Yu. Koroteeva
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  3. A. M. Novinskaya
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  4. N. N. Sysoev
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Corresponding author

Correspondence to I. A. Znamenskaya.

Additional information

Original Russian Text © I.A. Znamenskaya, E.Yu. Koroteeva, A.M. Novinskaya, N.N. Sysoev, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 13, pp. 51–57.

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Znamenskaya, I.A., Koroteeva, E.Y., Novinskaya, A.M. et al. Spectral peculiarities of turbulent pulsations of submerged water jets. Tech. Phys. Lett. 42, 686–688 (2016). https://doi.org/10.1134/S1063785016070154

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  • DOI: https://doi.org/10.1134/S1063785016070154

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