ESTIMATION OF BIRD TRAJECTORY ALONG THE FLOW FIELD OF INLET DUCT OF AN AIRCRAFT

Sandeep, K V Murlidharan

Abstract: The momentum of the Bird projectile plays key role in the design of engine components for bird hazard and it is important to know the momentum of the bird projectile before impacting engine components. Intake duct of military aircraft have serpentine shape which increases the probability of projectile impact on duct before impacting engine components. The bird fragment at the entrance of the engine depends upon location of the bird strike and angle of impact with respect to Intake duct. There is also another probability i.e. projectile may not hit the duct at all. The aim of this project is to study the trajectory of bird projectile in the Intake-duct of a typical Military gas turbine engine. This work indicates the probability of bird hitting the duct or entering straight into the engine. Commercially available computational fluid dynamics software will be used to track the trajectory of the bird projectile. The flow field changes due to the foreign object along with the total pressure loss and distortion will be computed.

Keywords: TRAJECTORY , AIRCRAFT

DOI: https://doi.org/10.15623/ijret.2016.0521008