Turbulent structure in supersonic jets with a high Reynolds number
- Autores: Sobolev A.1, Zapryagaev V.1, Kiselev N.1, Gubanov D.1, Kundasev S.1
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Afiliações:
- Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
- Edição: Volume 25, Nº 4 (2018)
- Páginas: 473-481
- Seção: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217682
- DOI: https://doi.org/10.1134/S0869864318040017
- ID: 217682
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Resumo
The turbulent properties of a supersonic jet were studied related to a high level of pressure pulsation found in model jets of a reentry flight vehicle approaching the landing ground. This study comprised measurements of total pressure at a small-size target using a dynamic pressure probe placed in a free jet. The most comprehensive data about jet turbulence can be obtained by direct transformation of the pressure reading at the stagnation point near the target into the normalized velocity. The oscillogram of normalized velocity produces the velocity average value, root-mean-square value as well as turbulence intensity and turbulence spectrum. It was demonstrated that a high level of turbulence for a high-head jet retains along the supersonic core length and at the beginning of subsonic interval.
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Sobre autores
A. Sobolev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Autor responsável pela correspondência
Email: sobolev@itam.nsc.ru
Rússia, Novosibirsk
V. Zapryagaev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: sobolev@itam.nsc.ru
Rússia, Novosibirsk
N. Kiselev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: sobolev@itam.nsc.ru
Rússia, Novosibirsk
D. Gubanov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: sobolev@itam.nsc.ru
Rússia, Novosibirsk
S. Kundasev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: sobolev@itam.nsc.ru
Rússia, Novosibirsk