The major challenge to characterising the propagation condition over any environment is accessing the data of the lowest boundary layer of the atmosphere, which is highly dynamic and turbulent in evolution.
These measurements for the first time detail at full-scale Reynolds number conditions and at both unstable and neutral atmospheric conditions, the wind speed and turbulent kinetic energy evolution in near- and far-wakes (up to six-diameters) including their vertical profiles at eleven different locations downstream.
The former conclusion seems to be robust whereas the latter is dubious as gene gain in transitional epochs could be more plausibly attributed to genetic drift enabled by the population bottlenecks that are characteristic of these turbulent periods of evolution 8, 65.
Equally, however, as a writer who knows and appreciates Argentina, he is prepared to take on the more demanding task of telling the story in parallel with that of the country's turbulent political and social evolution.
Consequently, the system evolution represents turbulent combustion in the thin reaction zone regime.
It is suggested that this framework is an important step toward the development of a standard approach for modeling droplet size evolution in turbulent flow.
Finally, the evolution of turbulent flame in the end gas of the confined chamber was described in detail with three stages: compression front formation, flame front distortion and reverse propagation.
The main contribution of this work is a detailed experimental investigation of the evolution of turbulent quantities relevant to noise production, performed in the close vicinity of the airfoil leading edge subjected to grid turbulence, by means of stereoscopic Particle Image Velocimetry measurements.
The four principal findings are that 1) genome size increased with increased level of environmental turbulence, 2) the rate of evolution was highest in moderately turbulent environments, (3) clonal diversity was highest in the most turbulent environments, and (4) population extinction rates were highest in populations that had evolved in relatively stable environments.
The purpose of this study was to contribute to the understanding of the nature and evolution of the turbulent motions in the near-wake region of a real tree, by analyzing overall turbulence statistics and instantaneous flow velocities.
