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This article is cited in 11 scientific papers (total in 11 papers)
The influence of the angle of inclination of single-row oval-trench dimples in the stabilized hydrodynamic section of a narrow channel on the anomalous intensification of the separated turbulent flow
S. A. Isaevabc, A. B. Mazoc, D. V. Nikushchenkoa, I. A. Popovd, A. G. Sudakovb a State Marine Technical University of St. Petersburg
b Saint-Petersburg State University of Civil Aviation
c Kazan (Volga Region) Federal University
d Kazan National Research Technical University named after A. N. Tupolev
Abstract:
The slope of the oval-trench dimple in the corridor package on the hydrodynamic stabilized section of the narrow channel has a dramatic effect on the anomalous intensification of returned and swirling flows in the dimple, leading to a 3–4-fold decrease in relative negative friction in the range of angles from 40$^{\circ}$ to 60$^{\circ}$, an increase in the highest speed return and secondary flows up to 0.8 and 1.18 with respect to the mass-average flow velocity in the channel.
Keywords:
inclined oval-trench dimples, narrow canal, intensification.
Received: 06.07.2020 Revised: 22.07.2020 Accepted: 24.07.2020
Citation:
S. A. Isaev, A. B. Mazo, D. V. Nikushchenko, I. A. Popov, A. G. Sudakov, “The influence of the angle of inclination of single-row oval-trench dimples in the stabilized hydrodynamic section of a narrow channel on the anomalous intensification of the separated turbulent flow”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:21 (2020), 18–21; Tech. Phys. Lett., 46:11 (2020), 1064–1067
Linking options:
https://www.mathnet.ru/eng/pjtf4947 https://www.mathnet.ru/eng/pjtf/v46/i21/p18
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