Investigation of higher order correlations in swirling pipe flows
Abstract
Statistical quantities of swirling pipe flows generated by radial guide vanes were studied by a triple hot-wire probe and digital data reduction at two cross-sections of the pipe, one directly behind the swirl generator and the other some distance downstream from the vanes. The influence of swirl intensity on the axial pipe flow was investigated with the measured second and third order correlations as well as the third and fourth order central moments. The probability-density distribution shows the significance of the turbulence transfer mechanism in the complicated process of swirling flows.
- Publication:
-
Zeitschrift fur Flugwissenschaften und Weltraumforschung
- Pub Date:
- April 1982
- Bibcode:
- 1982ZFlWe...6..117A
- Keywords:
-
- Computational Fluid Dynamics;
- Guide Vanes;
- Hot-Wire Flowmeters;
- Pipe Flow;
- Swirling;
- Turbulent Flow;
- Correlation Coefficients;
- Data Reduction;
- Digital Techniques;
- Probability Density Functions;
- Rotating Fluids;
- Statistical Analysis;
- Fluid Mechanics and Heat Transfer