Measurement of parameters of low-intensity shock
wave under nonuniform flow conditions
Т.А.
Kiseleva and V.A. Kislovskiy
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS,Novosibirsk, Russia
E-mail: bobarykina@ngs.ru
Keywords: radial supersonic jet, pressure profile, measurement technique
Pages: 687–694
Abstract
Under
the experimental studies carried out to reduce the sonic boom intensity created
by the aircraft by means of active action, the problem of measuring the shock
wave parameters in nonuniform flow is considered. Comparison of the pressure
profiles behind the shock wave obtained by means of a drained measuring plate
and a comb of brake pressure probes is given. It is shown that the technique
using brake pressure probes provides an acceptable reliability of pressure
distributions measurements in the near zone of the model. The use of the
drained plate leads to significant errors in measuring under nonuniform flow
conditions. Analysis of the causes of signal distortion is carried out.
The procedure for experimental data processing is presented.
DOI: 10.1134/S0869864318050050
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