Spectral peculiarities of turbulent pulsations of submerged water jets
- Authors: Znamenskaya I.A.1, Koroteeva E.Y.1, Novinskaya A.M.1, Sysoev N.N.1
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Affiliations:
- Moscow State University
- Issue: Vol 42, No 7 (2016)
- Pages: 686-688
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/199923
- DOI: https://doi.org/10.1134/S1063785016070154
- ID: 199923
Cite item
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.
About the authors
I. A. Znamenskaya
Moscow State University
Author for correspondence.
Email: znamen@phys.msu.ru
Russian Federation, Moscow, 119899
E. Yu. Koroteeva
Moscow State University
Email: znamen@phys.msu.ru
Russian Federation, Moscow, 119899
A. M. Novinskaya
Moscow State University
Email: znamen@phys.msu.ru
Russian Federation, Moscow, 119899
N. N. Sysoev
Moscow State University
Email: znamen@phys.msu.ru
Russian Federation, Moscow, 119899