Abstract: Effusion cooling represents the state-of-the-art for liner cooling technology in modern combustion chambers, combining a more uniform film protection of the wall and a significant heat sink effect by forced convection ...

Abstract: It is well known from the literature that surface roughness significantly affects friction and heat transfer. This is even more evident for additive manufactured (AM) components, which are taking an increasingly important ...

Abstract: Effusion cooling represents one of the most innovative techniques to limit and control the metal temperature of combustors liner, and recently, attention has been paid by the scientific community on the characterization ...

Abstract: Incoming standards on NOx emissions are motivating many aero-engines manufacturers to adopt the lean burn combustion concept. However, several technological issues have to be faced in this transition, among which limited ...

Abstract: This paper reports the main findings of a numerical investigation aimed at characterizing the flow field and the wall heat transfer resulting from the interaction of a swirling flow provided by leanburn injectors and a ...

Abstract: Modern lean burn aero-engine combustors make use of relevant swirl degrees for flame stabilization. Moreover, important temperature distortions are generated, in tangential and radial directions, due to discrete fuel ...

Abstract: This work presents the results of a numerical analysis performed on a gas turbine leading edge cooling system. The investigation was carried out in order to provide a detailed interpretation of the outcomes of a parallel ...

Abstract: The main annulus hot gas ingress into turbine wheel-spaces is still one of the most challenging problems designers face. During the decades, several experimental test benches were developed worldwide to improve the knowledge ...

Abstract: Stateoftheart liner cooling technology for modern combustion chambers is represented by effusion cooling (or fullcoverage film cooling). Effusion is a very efficient cooling strategy typically based on the use of several ...

Abstract: The transitionpiece of a gas turbine engine is subjected to high thermal loads as it collects high temperature combustion products from the gas generator to a turbine. This generally produces high thermal stress levels in ...