Numerical simulation on the development of periodic three-dimensional disturbances in a supersonic boundary layer
1 Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
2 Novosibirsk State University, Novosibirsk 630090, Russia
* Corresponding author: email@example.com
Published online: 14 January 2019
The results of a numerical study of the development of periodic pulsations in a supersonic boundary layer on a flat plate are presented at a Mach number of 2.5 and a unit Reynolds number of 8×106 m–1. Using the software complex ANSYS, the complete Navier-Stokes equations were solved. Periodic mass flow disturbances with a frequency of 20 kHz were introduced into the boundary layer through a small-diameter hole on the surface of the model. Downstream the profiles of the longitudinal mass flow pulsations were recorded, and spectral analysis of the data was carried out. The main characteristics of the development of unstable disturbances in both physical and wave spaces are obtained.
© The Authors, published by EDP Sciences, 2019
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