| Issue |
Volume 3, 2012
Progress in Flight Physics
|
|
|---|---|---|
| Page(s) | 3 - 14 | |
| Section | Chapter One. Aerodynamics | |
| DOI | https://doi.org/10.1051/eucass/201203003 | |
| Published online | 29 January 2013 | |
Preliminary results of flow fluctuation measurements in the cryogenic transonic wind tunnel
1
Khristianovich Institute of Theoretical and Applied
Mechanics Siberian Branch of the Russian Academy of
Sciences, Institutskaya 4/1, Novosibirsk
630090,
Russia
2
European Transonic Windtunnel GmbH,
Cologne
51147,
Germany
The detailed information about flow fluctuations structure inside the test section of Pilot of European Transonic Windtunnel (PETW) obtained by means of hot-wire anemometer and fluctuation diagram (FD) method within broad and narrow frequency band is presented. Fluctuation diagrams were derived from an array of hot wire output data measured at different overheating ratio of the probe (not less than 8) at freestream Mach numbers M = 0.2, 0.4, 0.6, 0.7, and 0.8, total temperature T0 = 118 . . . 294.7 K and unit Reynolds numbers Re1 = (5.54 . . . 108.6) · 106 1/m, respectively. Time series of these output signal data were used to obtain information of statistical and correlation features, mode, and spectral composition of flow fluctuations.
© Owned by the authors, published by EDP Sciences, 2012