DESIGN OF A COUNTER ROTATING FAN - AN AIRCRAFT ENGINE TECHNOLOGY TO REDUCE NOISE AND CO2-EMISSIONS

Abstract

A model scaled (1:3) counter rotating fan was aerodynamically and mechanically designed using one of the newest design methods featuring a multiobjective automatic optimization method based on an Evolutionary Algorithm.This work was performed within the frame of the EU-project VITAL, which's objective is to contribute a significant part to the engine improvements towards the ACARE-goals, which are the noise reduction by 50 %, the NO x reduction by 80 % and the CO 2 reduction by 50 %.