Abstract
Recent studies have shown that the turbulence production process in shear flows is not entirely random, but rather quasiperiodic in nature. Since the large eddies play a decisive role in these processes in all shear flows, it is instructive to see if they bear any common characteristics. The possible universal distributions of time and velocity scales (T,u//p) in the low-frequency component of the turbulent signals - defined, respectively, as the interval between successive zero crossings and the intervening absolute peak value of the longitudinal velocity signal - have been explored in a number of flows. These include the self-preserving regions of a turbulent boundary layer, plane jet, circular jet, and plane mixing layer and the initial mixing regions of a plane jet and circular jet.
Original language | English (US) |
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Pages (from-to) | 161-162 |
Number of pages | 2 |
Journal | AIAA Journal |
Volume | 23 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1985 |
ASJC Scopus subject areas
- Aerospace Engineering