Mode decomposition of disturbances in a supersonic flow

Controlled disturbances are inserted into the wind tunnel flow, and probing measurements of the fields of the amplitudes of pressure and phase velocity oscillations of these disturbances are performed. Based on the relations for inviscid interaction of long-wave vortex, entropy, and acoustic disturb...

Full description

Saved in:
Bibliographic Details
Published in:Thermophysics and aeromechanics 2020-09, Vol.27 (5), p.643-653
Main Authors: Tsyryulnikov, I. S., Gromyko, Yu. V., Poplavskaya, T. V.
Format: Article
Language:English
Subjects:
Angle of attack
Blowdown wind tunnels
Computational fluid dynamics
Conversion
Decomposition
Disturbances
Flat plates
Mathematical models
Phase velocity
Physics
Physics and Astronomy
Pressure oscillations
Shock waves
Sideslip
Supersonic flow
Thermodynamics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Controlled disturbances are inserted into the wind tunnel flow, and probing measurements of the fields of the amplitudes of pressure and phase velocity oscillations of these disturbances are performed. Based on the relations for inviscid interaction of long-wave vortex, entropy, and acoustic disturbances with the shock wave on a wedge and numerical simulations, the coefficients of conversion of various modes to pressure oscillations on the model surface are determined for the test conditions of a supersonic flow in the T-327B blowdown wind tunnel located at the Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences. The method of mode decomposition for controlled disturbances with the use of disturbance conversion coefficients is implemented in the case of a flat plate model with a sharp leading edge aligned at different angles of attack and side-slip in the flow.
ISSN:0869-8643
1531-8699
DOI:10.1134/S0869864320050029