Numerical study of disturbances generated by localized impulse action in a flat-plate boundary layer at Mach 2

S. R. Khaibullina, A. A. Yatskikh, A. N. Semenov, V. L. Kocharin

Research output: Contribution to journalConference articlepeer-review

Abstract

The work is devoted to the numerical simulation of the excitation and development of localized disturbances in the supersonic boundary layer of a plate with a sharp leading edge at a Mach number of 2 in a two-dimensional formulation. Artificial disturbances are generated with the help of localized in time and space by changing the boundary conditions to the velocity component normal to the surface. The studies for two intensities of the impulse action were carried out. It was found that with an increase in the intensity of the action on the boundary layer, the amplitude of the generated disturbances increases. The development of disturbances of various amplitudes is similar. The ratio of the level of total temperature pulsations to the level of mass flow pulsations was estimated for the investigated disturbances. It was found that at small distances from the source of disturbances, this ratio increases downstream, at the same time in the far field, it reaches a constant value.

Original languageEnglish
Article number012005
JournalJournal of Physics: Conference Series
Volume1867
Issue number1
DOIs
Publication statusPublished - 19 Apr 2021
Event16th All-Russian School-Conference of Young Scientists with International Participation on Actual Problems of Thermal Physics and Physical Hydrodynamics, APTPH XVI 2020 - Novosibirsk, Russian Federation
Duration: 24 Nov 202027 Nov 2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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