Optimization based on 3D CFD simulations of an axial turbine from a small gas turbine engine

Author(s): 
Luiz Gustavo Franco Amaral (Aeronautics Institute of Technology, Turbomachines Department)

The internal flow in turbomachines is extremely complex due to the level of details of the blades, with different angles and different levels of curvature and thickness, as well as the characteristics of the channel between blades that is a direct reflection of the geometry employed, added to the phenomena caused by high speed rotation. This study seeks the optimization of an axial turbine from a small gas turbine engine developed by ITA using Computational Fluid Dynamics (CFD) and Multi-Objective Optimization techniques focused on geometry changes to maximize the turbine performance.

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