1998-09-28

Aircraft Vortex Wake - Environmental and Flight Safety Aspects of the Problem 985590

Vortices in fluid and gas are very stable formations featuring a slow mass, momentum and energy exchange with surrounding atmosphere. The «closure» of vortices, on the one hand, facilitates their visualization and, on the other hand, results in accumulating and for long retaining hot engine exhaust gases entrained into the vortices in the stage of their formation in the near jet-vortex wake behind an aircraft. The later problem is closely related to the environmental impact of aviation, especially within airport areas and ozone layer of the Earth atmosphere. In this paper the problem of light scattering by particulates arising during water vapor condensation, droplet coagulation or breakdown is considered. Numerical results are presented of gasdynamic and optical properties of the aerosol-containing wakes of the Boeing-747-type aircraft and of the prospective Russian second-generation supersonic civil transport SST-2.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Flight Test Studies of the Formation and Dissipation of Trailing Vortices

730295

View Details

TECHNICAL PAPER

Recent Development in Wake Vortex Minimization

780524

View Details

STANDARD

Flammability Test Method for Aircraft Comfort Blankets

ARP5627

View Details

X