Numerical study on non-ventilated flame diffusion characteristics in aero-engine nacelle
by Yu Zheng; Guanbing Cheng; Guoda Wang; Shuming Li; Yimeng Hao
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 19, No. 2, 2020

Abstract: A numerical study on flame diffusion characteristics was effectuated in an aero-engine nacelle. A non-ventilated physical model was established with both ends in open condition. A calculated model was constructed by fire classical software based on LES method. Twelve detectors were placed along horizontal and tangential directions to trace variations of flame characteristic parameters such as temperature, pressure, and velocity together with component concentrations. The results show that the non-premixed flame characteristic parameters undergo both transient and steady states. In the transient state, the temperature, velocity, and oxygen together with soot concentrations evidently change (increase or reduce). Those parameters increase along the inner cylinder in left part of the nacelle, however they vary in opposite manner. Those parameter changes are more evident at the top and bottom of the nacelle. The pressure variation is not evident in the nacelle. In the steady state, those parameter distributions are quasi-symmetrical.

Online publication date: Thu, 08-Oct-2020

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Wireless and Mobile Computing (IJWMC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com