Two dimensional axisymmetric optimization of intermediate compressor duct

Sammanfattning

The civil aviation industry is a well established option for fast and secure intercontinental transport of people and freight. The continuous use of aerospace propulsion as a modern day means of transportation contributes to the emissions of harmfulgases that in excess contributes to the decay of the environment. Engineers are continuously making progress in optimizing the gas turbine engines used for aerospace propulsion in order to reduce the fuel consumption. There has been great progress over the years since the gas turbines was first introduced in aerospace propulsion during the second world war. The first gas turbine engines on aircraft’s where very loud and not very efficient in terms of reliability, lifespan and fuel consumption. The initial application for these engines where on military aircraft’s as it would take sometime before it was adapted by civil aviation, replacing the piston propeller engines.The turbofan engine is currently widely used by civil aviation for its propulsive efficiency with a high bypass and pressure ratio. The progress made over the last two centuries has been greatly affected by the invention of commercial computational fluid dynamics software’s. Numeric optimizations can now be coupled with CFD software’s that allows for optimization of complete modules and parts of the engine.This method aids engineers in reducing the wight and optimizing the performance on a component basis of the turbofan engine in order to reduce the emissions of harmful greenhouse gases.