Influence of blunt-cone tip temperature on the laminar-turbulent transition in hypersonic boundary layers
- Authors: Bountin D.A.1, Gromyko Y.V.1, Kirilovskiy S.V.1, Maslov A.A.1, Poplavskaya T.V.1
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Affiliations:
- Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
- Issue: Vol 25, No 4 (2018)
- Pages: 483-496
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217686
- DOI: https://doi.org/10.1134/S0869864318040029
- ID: 217686
Cite item
Abstract
In the present paper, we report on the results of a combined experimetal and numerical study of the laminar-turbulent transition at Mach number 5.95 in the boundary layers of 7-deg cones with a small nose-tip bluntness radius (down to 1.5 mm). The tip temperature of the model was varied in the range from 90 to 440 K. It was confirmed that the small nose-tip bluntness substantially shifts the position of the transition in downstream direction. This effect was also retained in testing the models with local heating/cooling of the cone tip. It is shown that for the experimental conditions implemented in the Transit-M wind tunnel, ITAM SB RAS, the local heating of blunt cone tips exerts almost no influence on the position of the transition. The local cooling of the cone tip with R = 1.5 mm leads to a shift of the transition position in upstream direction.
About the authors
D. A. Bountin
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: kirilov@itam.nsc.ru
Russian Federation, Novosibirsk
Yu. V. Gromyko
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: kirilov@itam.nsc.ru
Russian Federation, Novosibirsk
S. V. Kirilovskiy
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Author for correspondence.
Email: kirilov@itam.nsc.ru
Russian Federation, Novosibirsk
A. A. Maslov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: kirilov@itam.nsc.ru
Russian Federation, Novosibirsk
T. V. Poplavskaya
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: kirilov@itam.nsc.ru
Russian Federation, Novosibirsk