Estimation of buoyancy effect and penetration length of jet from aircraft engine by large eddy simulation method. (2016)

• Record Type: Journal Article
• Authors: Zaporozhets, Oleksandr; Synylo, Kateryna
• Is Part Of: International journal of sustainable aviation. Volume 2:Number 1(2016)
• Page Start: 34
• Page End: 51
• Publication Date: 2016
• Subjects: air pollution -- aircraft engine emissions -- local air quality -- LAQ -- exhaust gas emissions -- exhaust gas jets -- fluid flow -- buoyancy effect -- penetration length -- numerical simulation -- wall jet -- initial jet velocity -- engine installation height; Aeronautics -- Environmental aspects -- Periodicals; Aerospace engineering -- Environmental aspects -- Periodicals; Aircraft exhaust emissions -- Periodicals; 629.1300286
• Languages: English
• ISSNs: 2050-0467

Abstract

Emission inventories analysis at major European and Ukrainian airports highlighted that aircraft is a dominant source of air pollution. To evaluate the aircraft contribution in airport air quality it is important to take in mind some features of the aircraft, as special source of air pollution. The most part of landing-take-off cycle the aircraft is manoeuvring on the ground, it is subjected to fluid flow that can create a strong vortex between the ground and engine nozzle, which have essential influence on structure and basic mechanisms (Coanda and buoyancy effects) of exhaust gases jet from aircraft engine. To evaluate the influence of the ground on jet's parameters (height and longitudinal coordinate of buoyancy effect, length of jet penetration), the numerical simulation of wall jet by Fluent 6.3 implemented for different combination of initial jet velocity and height of engine installation. Obtained results of numerical simulations provide improvement of model PolEmiCa.