|
This article is cited in 3 scientific papers (total in 3 papers)
Numerical study of the evolution of disturbances generated by roughness elements in a supersonic boundary layer on a blunted cone
D. V. Khotyanovskyab, S. V. Kirilovskiyab, T. V. Poplavskayaab, A. N. Kudryavtsevab a Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Novosibirsk State University
Abstract:
Results of direct numerical simulations of the roughness-induced development of instability and transition to turbulence in a supersonic boundary layer on a blunted cone for the free-stream Mach number $\mathrm{M}_{\infty}=5{,}95$ are presented. The flow parameters and model geometry are consistent with the conditions of the experiments performed in the study. The following roughness types are considered: random distributed roughness, individual roughness elements of different shapes, and a group of regularly arranged roughness elements. The processes of the instability development and transition for different roughness types are compared, and possible mechanisms of the roughness influence on the stability of boundary layers on blunted bodies are discussed.
Keywords:
direct numerical simulation, laminar-turbulent transition, supersonic boundary layer, distributed roughness, individual roughness elements, blunted conical body.
Received: 29.10.2018 Revised: 29.10.2018 Accepted: 29.10.2018
Citation:
D. V. Khotyanovsky, S. V. Kirilovskiy, T. V. Poplavskaya, A. N. Kudryavtsev, “Numerical study of the evolution of disturbances generated by roughness elements in a supersonic boundary layer on a blunted cone”, Prikl. Mekh. Tekh. Fiz., 60:3 (2019), 45–59; J. Appl. Mech. Tech. Phys., 60:3 (2019), 438–450
Linking options:
https://www.mathnet.ru/eng/pmtf436 https://www.mathnet.ru/eng/pmtf/v60/i3/p45
|
Statistics & downloads: |
Abstract page: | 25 | Full-text PDF : | 3 | First page: | 1 |
|