Application of Elastic Layers to Register Pressure Field on the Model Surface in Supersonic Flow

Maxim P. Golubev
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
golubevmp@itam.nsc.ru
Andrey S. Shmakov
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
shmakov@itam.nsc.ru
The material was received by the Editorial Board: 13.01.2016
The work presents the results of application of panoramic interferential technique which is based on elastic layers (sensors) usage to obtain pressure distribution on the flat plate having sharp leading edge. Experiments were done in supersonic wind tunnel at Mach number M = 4. Sensitivity and response time are shown to be enough to register pressure pulsation against standing and traveling sensor surface waves. Applying high-frequency image acquiring is demonstrated to make possible to distinguish at visualization images high-speed disturbances propagating in the boundary layer from low-speed surface waves.

Keywords:
pressure fields, supersonic flow, laminar-turbulent transition. 
УДК 532.526; 535.8; 53.05

Application of Elastic Layers to Register Pressure Field on the Model Surface in Supersonic Flow
References: Golubev M. P., Shmakov A. S. Application of Elastic Layers to Register Pressure Field on the Model Surface in Supersonic Flow. Vestnik NSU. Series: Physics. 2016, vol. 11, no. 1. P. 23–33. (in Russ.). DOI: 10.54362/1818-7919-2016-11-1-23-33