Use of aerospace technology to study aircraft wakes is reviewed. It is shown how aerospace vehicles can be used to provide data for increased understanding of the atmosphere and of aircraft exhaust trails where knowledge is inadequate to evaluate fully the potential impact of the engine emissions. Models of aircraft near-field exhaust wakes are characterized by jet, vortex, and dispersion regimes. Wake growth in the jet regime is self-determined and rapid, whereas further spreading is inhibited in the vortex regime because of circulating vortex motion. Wake diffusion in the dispersion regime is initially influenced by aircraft induced turbulence but is dominated later by small-scale atmospheric turbulence. Computed fluid mechanical results show the importance of effects such as wake buoyancy, wind shear, turbulence, and traffic corridor exhaust buildup on dispersion of the wake. In the jet regime the exhaust characteristics and thermochemistry serve to illustrate initial chemical changes involving potential pollutant species.
Studies of aircraft wake chemistry and dispersion
1974-02-01
Miscellaneous
No indication
English
Dispersion of aircraft emissions due to wake vortices
British Library Conference Proceedings | 1994
|Dispersion of Aircraft Exhaust in the late wake
British Library Conference Proceedings | 1996
|Gasdynamics, Optics and Chemistry of an Aircraft Condensable wake
British Library Conference Proceedings | 1996
|AIAA | 1981
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