Aerodynamic Redesigning of an Industrial Gas Turbine

TitleAerodynamic Redesigning of an Industrial Gas Turbine
Publication TypeConference Proceedings
Year of Publication2011
AuthorsRubechini F, Schneider A, Arnone A, DaccĂ  F, Canelli C, Garibaldi P
Conference NameASME Turbo Expo
Volume7: Turbomachinery, Parts A, B, and C
Conference LocationVancouver, BC, Canada, 6-10 June
ISBN Number978-0-7918-5467-9
Other NumbersScopus 2-s2.0-84865447151

This paper deals with the aerodynamic redesigning of a four-stage heavy-duty gas turbine. Traditional design tools, such as through-flow methods, as well as more sophisticated tools, such as three-dimensional RANS computations, were applied in subsequent steps according to a given hierarchical criterion. Each design or analysis tool was coupled with modern optimization techniques, and the overall redesign procedure relies on a neural-network-based approach aimed at maximizing the turbine's power output while satisfying geometrical and mechanical constraints. A detailed description of the redesign procedure is provided, and the aerodynamic characteristics of the optimized geometry are discussed and compared to the original ones.