Vibration of pseudo-shock in straight duct. II - Correlation of static pressure fluctuation
Abstract
Pressure fluctuations at two points along a straight duct were simultaneously measured and correlated statistically in the forms of correlation factors and coherences to investigate the propagation of the pressure fluctuation. The variation of a pseudoshock had two main frequencies: the higher, the vibration of the air column in the divergent passage, propagated upstream as a pressure wave; the lower propagated convectionally with the main flow.
- Publication:
-
JSME International Journal Series B
- Pub Date:
- July 1984
- Bibcode:
- 1984JSMEB..27.1393Y
- Keywords:
-
- Compressible Flow;
- Ducted Flow;
- Oscillating Flow;
- Pressure Oscillations;
- Shock Waves;
- Static Pressure;
- Cross Correlation;
- Pressure Measurement;
- Shock Wave Propagation;
- Statistical Analysis;
- Fluid Mechanics and Heat Transfer