Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Numerical study of the effects of cooling on evolution of unsteady disturbances and transition to turbulence in a boundary layer at flow mach number M = 6. / Khotyanovsky, D. V.; Borisov, S. P.; Shershnev, A. A. и др.
High Energy Processes in Condensed Matter, HEPCM 2019: Proceedings of the XXVI Conference on High-Energy Processes in Condensed Matter, dedicated to the 150th anniversary of the birth of S.A. Chaplygin. ред. / Vasily Fomin. American Institute of Physics Inc., 2019. 030029 (AIP Conference Proceedings; Том 2125).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Numerical study of the effects of cooling on evolution of unsteady disturbances and transition to turbulence in a boundary layer at flow mach number M = 6
AU - Khotyanovsky, D. V.
AU - Borisov, S. P.
AU - Shershnev, A. A.
AU - Kudryavtsev, A. N.
PY - 2019/7/26
Y1 - 2019/7/26
N2 - Direct Numerical Simulation (DNS) is used to investigate linear and nonlinear stages of development of unstable disturbances and the transition to turbulence in a supersonic boundary layer on a flat plate with the Mach number of the external flow M = 6. The computations are carried out for the case of a cooled surface at a ratio of the plate temperature to the free-stream temperature Tw/T∞ = 1.4. According to linear stability theory calculations, the two-dimensional waves of the first mode in the boundary layer are completely stabilized at the considered flow parameters. The growth rates are maximum for unstable two-dimensional disturbances of the second mode, while the three-dimensional waves of the second mode are also unstable. The results of DNS of linear and nonlinear stages of development of such disturbances are compared with the results of earlier computations of the laminar-turbulent transition on a flat plate with a temperature corresponding to the case of a thermally insulated surface, Tw/T∞ = 7.
AB - Direct Numerical Simulation (DNS) is used to investigate linear and nonlinear stages of development of unstable disturbances and the transition to turbulence in a supersonic boundary layer on a flat plate with the Mach number of the external flow M = 6. The computations are carried out for the case of a cooled surface at a ratio of the plate temperature to the free-stream temperature Tw/T∞ = 1.4. According to linear stability theory calculations, the two-dimensional waves of the first mode in the boundary layer are completely stabilized at the considered flow parameters. The growth rates are maximum for unstable two-dimensional disturbances of the second mode, while the three-dimensional waves of the second mode are also unstable. The results of DNS of linear and nonlinear stages of development of such disturbances are compared with the results of earlier computations of the laminar-turbulent transition on a flat plate with a temperature corresponding to the case of a thermally insulated surface, Tw/T∞ = 7.
KW - STABILIZATION
KW - SIMULATION
UR - http://www.scopus.com/inward/record.url?scp=85070545329&partnerID=8YFLogxK
U2 - 10.1063/1.5117411
DO - 10.1063/1.5117411
M3 - Conference contribution
AN - SCOPUS:85070545329
T3 - AIP Conference Proceedings
BT - High Energy Processes in Condensed Matter, HEPCM 2019
A2 - Fomin, Vasily
PB - American Institute of Physics Inc.
T2 - 26th All-Russian Conference on High Energy Processes in Condensed Matter: Dedicated to the 150th Anniversary of the Birth of S.A. Chaplygin, HEPCM 2019
Y2 - 3 April 2019 through 5 April 2019
ER -
ID: 21229659