抄録
For modern aeroengines, it has become one of the important design issues to reduce weight as well as any kind of cost, while maintaining their high thermal efficiency. In this paper, we aim to trim weight of HP turbine blade while keeping enough space for cooling structure. We have searched for the optimum blade shapes that are much lighter than the original blade with similar aerodynamic performance by using Lattice Boltzmann Method for flow analysis and Multi Objective Genetic Algorithm for optimization. We tried to evaluate obtained blade with experiment.
